Gm 14 bolt gear ratio identification 21 ratio ; 30 spline pinion ; Technical Notes. Detailed, step-by-step instruction for setting up gears in a GM 10. REAR AXLE IDENTIFICATION GUIDE All ratios, 14 bolt Fits 2001-2019 GM AAM 11-1/2 FORD. 50" ring gear diameter ; 30 spline pinion ; Differential Identification Chart. It's on Posts 32,574 Reaction score 535 Location. 13 application? Differential Identification by tags or visual clues can be used to accurately identify a the gear ratio, the type of differential, and all component parts. 10: Standard: All GM 14 bolt axles are low pinion (pinion gear enters below the axle center Description: Original Factory gear for GM 9. com, the official website of Diesel Power Magazine. 2634 posts · Joined 2015 Questions on a GM 14 bolt rear. USA Standard Ring & Pinion gear set for 10. 2" It has to do with the diameter of the ring gear. 5 for GM. Maybe 15" wheels would help. 2014-2019 | Cadillac Escalade GM 9. 56 ratio | YG GM14T-456T | RANDYS Worldwide. its a 1970 firebird with a 12 bolt rear identification of COS which is a 3. 14 bolt gear ratio? Thread starter JohnRod; Start date Mar 1, 2022; Disclaimer: Links on this page pointing Our 14 Bolt Axle Identification Guide Will Help You ID Your 14 Bolt Axle – Full-Float or Semi-Float, Slide-On or Drum Mount – Quickly and Easily. 10-4. 38 : 1: Carrier Break: 3. Equp. Bought an 84 K30 CUCV 5/4 ton that supposedly has a Dana 60 upfront and a GM 14 bolt in the rear. Joined Sep 19, 2008 Messages 3,149 Location Pennsylvania. Code in glove box is HC8 which is just 3:21 gear ratio Forums. 12 bolt didferential gear If you’re not sure whether you’ve got a full-float or semi-float axle, this 14 Bolt Axle Identification Chart may help. the 41 and the 9 are important. 25 and 8. 10 Ratio Face Hobbed Ring and Pinion. BSquared; Sep 11, 2023; Suspension, Steering Gear Ratio; Back to Main Menu Warranties. 47/17=2. This axle A new and more complete look at converting a 14-Bolt to disc brakes, including weld-on and bolt-on brackets, a larger calliper option, and a detailed look at wheel stud and wheel nut The GM 10. Add to are just want to optimize the traction Post 1994, the 14-bolt was built by American Axle & Manufacturing. 10 Ratio 4. Description: *Spider gear kit *Fits GM 10. 5 is Find Ring and Pinion Gears GM 8. I don't know much about the interchangeability or identification of 10/12 bolt parts, USA Standard Ring & Pinion "thick" gear set for 10. Rated at 7,000 pounds carrying capacity. Add to Cart . The '87 GM Truck Modifications. 88) This is currently the ONLY selectable locker for the 10. Warranty Information. 875 in. 11 | 4. It is simpler than counting ring and pinion teeth. If it is a 4. 10 and down carrier; Technical Notes. 73 Ratio fbt The number of ring gear teeth and pinion gear teeth are stamped into the outside of the ring gear. 56 if Axle/Suspension Piece Identification. Oct 14, 2019 Posts 106 Reaction score 38 Location SE Wisconsin First Name Rich Truck Year Has nothing to do with gear ratio. 50" ring gear diameter ; 30 spline pinion ; 12 ring gear bolts ; 4. What's new. 5" 14 bolt 8-lug FF Dually (idk exactly how this one is different from the other FF 14-bolt but I imagine it is) Then the other questions are: A new and more complete look at converting a 14-Bolt to disc brakes, including weld-on and bolt-on brackets, a larger calliper option, and a detailed look at wheel stud and wheel nut options. The result is your gear ratio. COM; Cart (0) Account Log In; Parts by Axle Type. 8. QuikFact: The corporate GM terms "10-bolt" and "12-bolt" actually refer to the number of bolts used to fasten the ring gear to the carrier flange, but it also corresponds to the number of bolts fastening the rear inspection plate, Gear Ratio: No. 10,4. Dropping the rear diff cover and figuring out what axle gear ratio I have! Just a lil bit of man-ten-ance 😆 👌🏻. 38 "thick" gears are available to fit the lower It will walk you through four basic steps to identify your axle: How to make sure you’ve got a GM 14 bolt axle. 250” Diameter Ring Gear • 1. 5 and 11. The 10,41 gear ratio is also great for off-road Trying to find out what gear ratio is in the semi float axle I am going to sell. 56 ratio; Thick gear for 4. 5" GM 14 Bolt, 4. Give or take an inch, the axles aren't in it right now. The silver placard will be labeled “Service Parts Identification” and With a 10 1/2-inch-diameter ring gear, the biggest 14-bolt GM rearend looks much like a Dana 70, and is but a few thousandths of an inch shorter in ring gear diameter. 5 inch 14 bolt rear axle shafts, bearings, yokes, seals, pinion flange, ring and pinion gear sets, Rearend Quick ID - An 8. 2 Chevy-style has a round cover with an indentation running across the cover (like the 12-bolt Chevy) and 2 casting projections on the top of the rear. 13 ratio | YG GM14T-513T | RANDYS Worldwide. Gear Teeth: Std. 5" GM 14 bolt truck in a 5. 73 indicates the gear ratio. Forums. The original gear ratio should be 4. 5 GM rear axle is actully NOT it's own carrier. Thread starter Jaycarter; Start date Jul 7, 2024; 11. The only reference I can find is 3. 14: G75: Axle Rear: Best Gear Ratio For Your GM 10 Bolt. 76,3. Genuine American Axle & Manufacturing parts for Chevy GMC with AAM 10. Measurement – Axle Shaft Length & Bolt Circle; Calculators – Gear Ratio & Tire Size; Instructions The prefix for GM RPO codes relevant to Axle Identification is almost always “G”. Traditional BOM’s are 6 digits followed I got a 14 bolt I'm selling, it has stamped on the ring gear 11 41 10 77 Is this 4:10 or 3. 11 and numerically lower carrier. 1) 2. Home . 73-4. 5" Full-Float 14-Bolt rear axle. The 2-67 is the manufacture date, February, 1967. The GM 10. 11 ratio | ZG GM14T-411 | RANDYS Worldwide. 14 Bolt Gear Ratios? The 1973 - 1987 Chevrolet & GMC Squarebody Pickups Message Board Register or Log In To I'm trying to find out what gear ratios are offered as standard on the GM Corp. Purchase Revolution Gear GM 14-Bolt 11. Jaycarter; Jul 7, 2024; Auto Accessories Garage; Replies 4 Views 1K. 5" GM 14 bolt truck, 4. I’m not sure if it’s the original gear ratio, but I want to change to 3. 5" Ring Gear: Check Price: CRG-GM105-410: 4. Differential & Driveline. The best gear ratio for a GM 10 bolt is 10,41 because it is the only ratio that allows your engine to turn 10,41 times per minute. 10* SCR8250441-10 4. 5-PT-1950,GM9. 88 ratio | YG GM14T-488T | RANDYS Worldwide. 73: Standard: 4. 36) which is a tough place to get into first gear. For those who are not aware. GMC or Chevy 14-Bolt Rear Axle Identification Guide GM Drivetrain & Suspension - Official 14 Bolt 9. 7L Cummins 2500; 2011-2016 Ram 6. 86 and if I can get my damn hands on one I would. If it has the GM Corp 14 bolt full-floater rear it will have 14 bolts (imagine that lol) and the wider side will point towards the driver's side. 5 LH Cover Bolts: 14 Carrier Breaks: 3. 10/4. line of light-duty differential parts. not the "corporate" 14-bolt. 25" ring gear and unique pinion bearing design such that the pinion shaft is supported from the front and rear. 5" 14 Bolt Truck, '88 & older (excluding '84-'85) GM 10. Here is what I know. 78 Re: 8. 40,3. 11:1 ring and pinion. 41 divided by 11 = 3. 56. GM 14 bolt 10. SHOP SPEAKERS: https://www. It was used under 1973-87 3/4-tons. 73 to 4. Exa. . 5″ Gear Ratio Rotation Carrier Notes Pricing; CRG-GM105-373: 3. 21 ratio | YG GM14T-321 | RANDYS Worldwide. The front end of our 4x4's are the same 8. The GM RPO Codes label is usually located inside the glove box or on the Driver’s Side Door Jamb (on the B-Pillar). HERE IS A CLOSE-UP OF A 14 BOLT GM REAR Spaxtix try googling 2002 gm rear axle bolt pattern. From 1964 through 1970 the format for the rear axle information consisted of a 2-letter code First time poster, long time lurker. Camaro V6 195mm. Cab and Chassis (C&C) 14 bolt disc brake Jun 14, 2016 Posts 14,968 Reaction score 9,836 Location Denver,PA First Name J-me Truck Year 87 and thought I would check out the gear ratio as well in case I pull it apart and find I need to order a new ring and pinion for it also. com/dp/B0BKG9RKJW HATS & T-SHIRTS: htt heres a darn good couple of chart's showing the effect on the cars lap time's that the selection of the correct rear gear ratio had, keep in mind this will need to be tested with every engine and drive train combo, and obviously -Factory gear ratios are 4. ecarter423 Genuine American Axle & Manufacturing parts for Chevy GMC with AAM 10. No removable pinion support on the front. 5" 14 bolt semi floating axle is a common upgrade for people who want to retain their 6 lug wheels and move up to something more robust than the 8. Here’s a quick reference for some ensure the bolt patterns match to avoid major headaches. Now I just have to figure out the gear ratio, and what to do about the fender clearance. 14 bolt, 8 lug, semi float. fsummers March 25, 2023, 4:31am 14. Has 33 spline c/clip axles. 2 inch has its axles retained at the brake end of the housing and all the other rears have C-clips retaining Re: 8. 5 ring gear. Help with GM 14 Bolt Rear End. 56 - 5. If you’ve got a 4×4, front and rear axle gear ratios need to be the same. 5 9. 5" 14 Bolt - Rear Axle; 11. 08 open. 57 and 5. 518 2402527 1 Ive tried searching for an answer for a few days now but cant come up with anything exact. HERE IS A CLOSE-UP OF A 14 BOLT GM REAR Rear Axle Ratio Charts For 1967 - 1972 GM Trucks The 1967 - 1972 Chevrolet & GMC Pickups Message Board Example: If the numbers 41 : 11 were stamped into the edge of the ring gear it would be a 3. Yukon Warranty; YES Plan GM Differential Identification & Specs GM Differential Identification & Specs. The high ratio Chevy 8. 5" 10 bolt 9. 5" Ring Gear Model. GM CORPORATE 10-BOLT This 10 GM 9. 11,4. Individual gear ratio identification codes can be found for their respective years on this website. 56 Ratio spec|Ring Gear Bolt Thread: 12 x 12MM spec|Ring Gear Diameter: 10. 14-Bolt Gear Setup. 56 to 5. 875″ 12-Bolt Car: 14-19: 6-8: 6-10: 55: 60: 8. 41/9 gives a ratio of 4. 30 but i have never ever hears of that ratio in a 12 bolt. High performance Yukon Ring & Pinion "thick" gear set for 10. I'm waiting on pics and may take a ride this weekend to go look at one Camping Gear Compressed Air Systems First Aid Lighting Radios & Communication Recovery Gear Roof Top Tents DIFF COVERS & PINION GUARDS DOM TUBING DRIVETRAIN Main Menu; 14 Bolt Parts Dana 30 Parts Dana 44 Parts Dana 60 Parts Ford 9" Parts Toyota 8" Parts Toyota 9. 2 Pontiac 10-bolt has 2 scallops (cutouts) on each side of the rear cover, whereas an 8. 56 & 2. 42 & Numerically Higher Pinion Diameter: 1. OEM gears are recommended for quiet applications where noise may be an issue. 5" 14 Bolt Truck, '89-'98 . 89. 5" Parts FABRICATION PARTS Main Menu; Battery Boxes Bumper Fab Parts I'm trying to ID a GM 12 bolt rearend. The pinion is the same diameter as the 12 bolt, but the 1972 rear end will have the weaker 28 spline factory axels unless that is an aftermarket Eaton posi in the rear end you bought that uses the 30 spline rear axels that were also used in the 12 bolt. 2. 73? Thanks 14 bolt gear ratio ID - QUICK HELP. Products include ring and pinion sets, installation kits and axle shafts for GM, Ford, Chrysler, Jeep, and GM RPO Codes – Axle & Ratio Identification; Identifying Parts – Exploded Views; Measurement – Axle Shaft Length & Bolt Circle; 10. Full Float has the axle hub sticking out of the drum or wheel. 10 bolt cover, 8. 626” Diameter Pinion • 27 Splines INSTALLATION KIT PART NO. Comments Required. (12-bolt), truck Differential Case Design Type, 3. 5" 14 bolt 8-lug FF 10. 14 bolt, 15 inch wide is 10. Number on the ring gear is 1 GM 14012786 11 41 3 84 . com. GM readend identification It's about 62" from between wheel mounting surfaces. 73:1 gear ratio already Divide the ring gear teeth number by the number of teeth on the pinion. 5 Inch Rear Axle 3. Ratios: 3. 5” Ring Gear Bolts: (12) 12MM X 1. And a Description: Original Factory gear for GM 10. My The rear axle identification code consists of a two letter prefix indicating the gear ratio, four digits indicating the assembly date as month/day, and a single letter suffix indicating the manufacturing location. Identify your GMC or Chevrolet rear end gear ratio by the RPO Codes, usually I Intend to use this article to gather all the info and pics I can find on the venerable GM "corporate" 14 Bolt (14b) full-floating rear axle, also referred to as the 10. Both of these axles are limited in the gear ratio, you can't find lower than 3. The front axle then it would be considered the "corporate 10-bolt" front axle. Latest: fourwheelerjeff; 45 Yukon Dura Grip positraction for 10. CRAWLPEDIA Off-Road Encyclopedia. 73 ring & pinion. The semi-float 14 bolt bridges the gap between the You might be asking yourself what gear ratio is best for your GM 10 bolt. The identification code should be stamped on the bottom or front left or right axle tube either adjacent to the carrier housing or about 8" - 10" inboard from the backing plates. Differential Identification is the first step to getting the right parts for your Gear and Axle project. Instagram . can you tell me what ratio this is? this axle had a locker of some sort in it, i believe it was the trc loc, or gov loc. This axle is commonly used with big engines and/or overly large tires. 73 8. The current Dana has a 4. GM CORPORATE 10-BOLT This 10 Identifying GM Rear End Identification Codes If you’re working on a General Motors vehicle and need to identify the rear 2. 5" 14 bolt 6-lug SF (rare-ish) 9. 91 SCR8250343-11 4. Review Subject Required. 5L GM diesels, only on dieselpowermag. 56 Ratio Quantity. 11's, & 4. with a 350/350 and a 14 bolt '87 GM Truck Modifications. Rating Required Name Required. 84_c10_GMC; Jan 12, 2025; Electrical & Audio Thanks for the help! I guess that means I have a late model 14 bolt rear. GM 9. 5-373DC 4. Jun 20, 2022 #15 E. Divide the 41 by 11 to get 3. GM 14-Bolt and Dana 60 axles are exceptionally strong and can GM 9. Give them a call and hit option # 2. Jul 27, 2024. 36 transaxle will bring his 'magic number' to only to 7. Add to are just want to optimize the traction performance of your ride, Yukon offers the widest In ‘75 the 4. Based on what I could find online, if it’s a 14 bolt FF you might need a different carrier for anything lower (numerically) than 4. Other than counting number of bolts [14 bolt pattern] Click to expand Rear Axle Ratio Charts For 1967 - 1972 GM Trucks The 1967 - 1972 Chevrolet & GMC Pickups Message Board Example: If the numbers 41 : 11 were stamped into the edge of the ring gear it would be a 3. 2L, 4911 IP, 6. 6L Duramax 2500HD; 2007-2015 GM 6. May not exactly Crawlpedia is an off-road encyclopedia featuring a complete list of GM RPO axle codes to find your gear ratio. WHere can I find the code on a 10 bolt GM rear end and will this code tell me the gear ratio on the inside? I appriciate any help I can get thanks everyone!! Save Share ( gear ratio) its a 12 bolt as well and also is the 14 Bolt Identification. 50" ring gear diameter; 30 spline pinion; 12 ring gear bolts; 4. Variations of this can be found in the rear of GM S-trucks and some Isuzus, and in the front of S-trucks. AXLE IDENTIFICATION Chevrolet began the manufacture of their own design Front Drive Axles for use on 1/ 2 and 3/ 40 5531 2402525 10 BOLT, Gear to Case (Also Part of Gear Kit 5. 5” identification. New posts Search forums. 56 Ratio, 2013 Older Ring and Pinion Revolution Gear. article details a complete carrier change plus installation and setup of the ring and Title: 14 Bolt Axle Identification Chart Author: Lugnut4x4. 5" axle is only available in low pinion, standard rotation configurations. I found 10 bolt, 11 inch wide is 8. 73 : Yes (this code only used for 1967-69) 12 bolt : Detroit gear & axle : GN : normally you just divide the ring gear teeth by the pinion teeth which in your case comes out to 3. 5" (after the size To find the axle gear ratio of any GM vehicle, locate the RPO sticker Gear ratio, ring gear rotation, and thick gear designations can be found marked on most gears. If they were used during another year, you will find the additional years listed below. SASKCHEYENNE75; Apr 22, 2024; Differential & Driveline; Replies 7 Views 2K. High performance Yukon Ring & Pinion gear set for 10. If you want a real world opinion of which is considered "bulletproof" the 10. But I have a few questions about the differentials and gear ratio. 0” 10 Bolt, GM 10 bolt, 7. 5 Rear, '97-'13. 38” 12 Holes 10 Holes Housing Cover and 12 Bolt Ring Gear 10 Holes 12 Holes Tundras with 4. With J-52: With J-56: With Y-75 Read about the General Motors 14 Bolt 10-1/2-inch 1,000-lb-ft proof axle used behind the 6. 2 Chevy gears. 5" in a 3. GM 14-Bolt and Dana 60 axles are exceptionally strong and can High performance Yukon Ring & Pinion gear set for 10. 5 inch 14 Bolt Rear Axle. We call them G codes 2. 73's, 4. 11 ratio. 10 gears were very common in a K20, but I believe 3. 56 Ratio Ring & Pinion Set. • 11-3/8” • Oval Cover 10 Holes • 10 Bolt • 8. Email Required. 56 which is most likely what it has in it. 2L and 6. 6" 10-Bolt Salisbury 9. 11 and down carrier ; Technical Notes. 5" GM 14 bolt truck ; 10. 42,3. 11 ratio We are getting close to completion. 73 Ratios (Less internal gears) 42 5. 5" 14 bolt truck open differential *Includes two side gears, four pinion gears, cross pin shaft, cross pin bolt and spider gear thrust washers. GM 14 Bolt Front Axle - Shaved 14 bolt, steering, gm, 14, badass, axle, ECGS, reid, reid racing, Select Gear Ratio Includes: New Ring & Pinions If it is a Dana 60 or 70 it will have 10 bolts as well but the cover will be odd shaped. 5 SF Truck Thread - First Lets start off with some Links on different types of 14 Bolt 9. 50" ring gear diameter ; 30 spline pinion ; As gear ratio goes numerically higher (like 3. 1988. 5″ Truck: Also of Interest: Early Ford Beam Axle Identification and Dimensions; How To Box-In a Differential / Solid Axle Rear-End Housing; How To Select Proper Rear-End This is what the numbers read on the ring gear: 3817778 11:41 GM 1-70, any info would help. TEETH 3. 76:1 rear e High performance Yukon Ring & Pinion "thick" gear set for 10. it'll have a number like GM 4444444 9 41 5 65 or something like that. Pontiac 2. Does anyone know if gm 10 bolt front axles are stamped with a code or anything that would tell the gear ratio? Forums. Differential & Driveline . Free Shipping; Special OrderLoading Estimated Ship Date: Feb 4, 2025 if ordered today. Add to are just want to optimize the traction performance of your ride, Yukon offers the widest High performance Yukon Ring & Pinion "thick" gear set for 10. 5 inch Ring Gear and doesn't require C 1 GM 3992484 11 41 5 73 these are the numbers i pulled off of a gear set in a 14 bolt at the local junk yard. So the On the 1988-1998 C/K models (Chevy Trucks) is there a stamp on those axles to help identify gear ratio. 5" GM 14 bolt truck ; 30 spline pinion ; 4. 10 10. 73:1 Ring and Pinion Ratio and get Free Shipping on Orders Over $109 at Summit Racing! FINAL DAY! $20 Off $250 $40 Off $500 / $80 Off $1,000 - Use Promo Code: GETREADY The ECGS steering 14 bolt features the highest quality parts available on the market. Full Float is a 10. With its well documented project builds, technical articles, factory specifications, photo gallery, classifieds, active message forum, product reviews and original automotive content it's an unbeatable source. One of the better gear lubes out there. LockDoc _____ Leon Locksmith, SB350 TH400 14 bolt rear end Extremely boring build thread 11-19 GM Drivetrain & Suspension - Official 14 Bolt 9. 73 ratio and numerically higher carrier. I'm considering this swap for my `90 3500 Crew Cab Dually Silverado due to axle ratio availability. Estimated Ship Date: Feb 4, 2025 if ordered today. Has 33 spline c/clip is one who can be identified, directly or indirectly, in particular by reference to an identifier such as a name, an identification number, location data, The maximum multiplied lowest gear ratio, to include first gear, transfer case low range, How do you ID the rear from the newer GM trucks when its already out? Can some one post pics of the rear covers for the AAM 10. In 1988, However, AAM continues to produce the 14 bolt with the 10. 5" 14 bolt 8-lug SF - yours 10. 5" 14 bolt truck ; 3. 38 ratio | YG GM14T-538T | RANDYS Worldwide. Add to Cart Fits GM 10. At any rate, I should be good to go with the gear ratio I have. Rating Required. 56 unless you REALLY luck out. He needs to run a lower gear (higher numbered) than 3. I have avoided building the early 8. 5 inch 14 bolt rear axle shafts, bearings, yokes, seals, pinion flange, ring and pinion gear sets, I am doing a little poking around to verify my rear end in my car that is not verified. 10 & Down: Full 10. A multiplier of the first gear and the 3. 54 where the 14 bolt can go down to a 3. 875 gear. in particular by reference to an identifier such as a name, an identification number, location data, an online identifier or to one or more factors specific to the physical, physiological, genetic, mental, economic, cultural or social identity of that natural HOW TO FIGURE GEAR RATIO OUT WITHOUT, TAKING IT APART - Square Body Chevy C10 Build. The code G80 would mean it has the limited slip diff . 4. support@rigidaxle. Whether you’ve added tons of horsepower under the hood, upgraded to bigger tires, are just want to optimize the traction performance of your ride, Yukon offers the widest selection of gear ratios on the market to accommodate every need. It is GM's 1 ton axle and carries a GAWR up to 8,600 lbs. Gear 1969 Chevelle Rear Axle and Differential Identification. About AAM; Latest News; Contact AAM; AAM. 5 gear. The 1-70 is the date when it was built 14 bolt semi float. 7L Cummins 3500; Chose Gear Ratio 4. Is the gear ratio the same? Your speedo may be off. 5 injectors, GM-3 Turbo 2wd auto, 224,000 miles nv4500 or nv3500 2wd wanted! Revolution Gear and Axle GM 14-Bolt 9. I picked up a 14 bolt ff with NON-slide on drums, 14 bolt ff swr or c&c identification? Thread starter ecarter423; Doesn't really matter what it came out of since you now have it and as long as the gear ratio is the same (going in the K10, presumed). Not a Dana Wire identification help. 75 gear. It is a spider gear replacement system. Jump to Latest it can also be founf on the ring gear. Thread starter TxChevyGuy; Start date Sep 6, 2019; Trying to figure out my gear ratio. Camaro ZL1 250mm. Technical Notes. Please make a selection for each of the required (*) options A new posi duratrack carrier by Yukon, a 9. 875″ 12-Bolt Truck: 13-15: 6-7: 6-10: 55: 60 Doing a gear ratio change but not sure what you want? Try our Differential Gear Calculator. 529) 41 5. Skip to main content. 14 bolt, 12 inch wide is 9. Camaro V8 218mm. 13 gears are a Thick gear that only goes on the 4. 5" 10 bolt rear end identification vs 8. GM 10. 5" 14-Bolt Salisbury GM Chevrole t GMC Cadillac Tahoe - Sonora - Suburba n Yukon - Yukon X L Escalade - Escalade ES V Full-Size Utility 100/1500 1992-1999 2000-2006 2007-2013 GMT 400 GMT 800 GMT 900 8. How to tell if you’ve got a semi-float or a full-float axle. 14 bolt FF. 5 rear axle gear sets and Dana 60 front axle gear sets along with the correct master bearing install kit for your vehicle model year. 5″ 14-Bolt Rear Axle – Common Applications. GM CORPORATE 10-BOLT This 10-bolt, with a larger 8 1/2-inch ring gear diameter, replaced the Dana 44 that was used in the front of some pre Differential Identification; Installation Instructions; Gear Ratio Calculators; Setup & Torque Specs; GM RPO Codes; Carrier Breaks; Diagnosing Problems; GM 10. 2x3. 56 Ratio Thick Rear Ring & Pinion GearInstall Kit Package, Part Number: YGA-10521. Jun 13, 2001 #2 Ok, the 11:41 is the gear ratio. 6L Duramax 3500HD; 2011-2014 Ram 6. 876” Pinion Spline: 30 1991 – 1996 Cadillac Fleetwood 1988 – 1997 Chevrolet C1500 1992 – 1997 C. 10 and the lowest numerical gear set for it is 3. Registered members Current That's the GM/Chevy/Corporate 14 bolt, full floater with 10. Supposedly there is an elusive 5. Thread starter MTMike; Start date Mar 3, 2006; MTMike 1/2 ton status. 21,3. 76 therefore we have 2. 5" 14 Bolt - Rear Axle; 12. 5" GM 14 bolt axle. Pro-Tip: The GM 10-bolt axle ratio codes vary by year, so creating a list of the ratios would take pages and pages. 73 ratio. Speedo is driven off the trans, so no it won't. . 36. '87 GM Truck Modifications. 56 Ratios (Less internal gears) CASE, Diff. Common Codes and What They Mean. Thanks again! If you want to know the gear ratio you have to take a pic of your RPO sticker in your glovebox . is it possible to use this locker in a 5. Find the code that starts with the letter G (or H) and look up your gear ratio in the Identifying Chevy 14 Bolt Rear ratios. 42 ratio | YG GM14T-342 | RANDYS Worldwide. 14 BOLT GM AXLE The Full Floating 10. SKU: GM10. 14 Bolt ARB Air Locker Specs; Replaces 1968 Chevelle Rear Axle Identification 12-Bolt Casting #3917124 My Chevrolet Parts and Accessories Catalog, circa 1972, only shows the gear ratio service part numbers so it is quite possible one or the other was discontinued Photos for identification purposes. 5,GM,PT 1950. Photos for identification purposes. a recount might be in order. Quantity. Reactions: jd33173. 0" 14 Bolt - Rear Axle; 195 MM Rear Axle; 218 MM Rear Axle; So I found a guy that has two 14 bolt axles for 6 bolt wheels with 3. 1994 c2500 with 5. Compatible Make / Model. 39 (2. 7 and nv4500 No tag on the cover, and these are the only stamping on the tubes ry8 g353 1205 023427 Likewise, while most 1 ton Chevy and GMC trucks and vans feature a 14 bolt rear axle, they can also be found in three-quarter ton trucks, vans, and SUVs (Suburban). While I believe the Definitely a full float 14 bolt and Dana 44. 10. 5" 14 Bolt Rear - Posi Package Description Package Includes: (1) Limited Slip Positraction Carrier(1) Ring and Pinion Gear Set (Choose Ratio Above)(1) Rear Master Bearing The gear ratio codes are located on the front passenger side of the differential as shown in the illustration below. 62 RATIO G76 : POSITRACTION REAR G80 : AXLE POSITRACTION, LIMITED SLIP 6. 56* SCR8250541-9 Fits 2. 5″ ring gear for GM today. 14 RATIO G74 : HEAVY DUTY SUSPENSION G75 : AXLE REAR, 3. Not Yet Reviewed. also there should be a stamp on the edge of the ring gear that will say the tooth count. 42 ratio. 12 bolt, 11 inch wide is 8. 3” x 9. 07 : Yes (this code only used for 1966-67) 12 bolt, Metallic brakes : Detroit gear & axle : GM : 2. RetroC10Sport. 38: Max Torque Capacity: 6,242 lb-ft: Weight (Illustration/Summit Racing) Q: I have a 1970 El Camino with a 12-bolt differential and 4. 10 & down | YDGGM14T-3-30-1 | RANDYS Worldwide. Very easy to tell the difference in a 14 Bolt Full Float and a 14 Bolt Semi Float. Default Light style 8. 55 SCR8250239-11 3. Name Required. Sort by Oldest first Oldest first Newest first Most reactions. com (866) 806-2953. I hear gear oils are changing their multi viscosity ratings now to funky #'s but if it's rated at GL4 or better, like GL5 for example, and in the neighborhood of 90W, then it should be fine for a 14b Full Float and 14b Semi Float open differentials. ZG GM14T-411. For all your differential small most GM truck axles werent tagged like many of the dana and ford axles were. 5" ring gear. Joined CK5 has since expanded to include the classic C/K series GM Truck and Suburban as well as past and present GM High performance Yukon Ring & Pinion gear set for 10. 2 10 bolt carrier accepted 2. 5" 14T in a 3. 12 bolt : Detroit gear & axle : GG : 3. 56 and 2. Product Details. New posts Latest activity. 21 1967 Oldsmobile Differential/Rearend Identification and Ratios 1967 Oldsmobile Differential Identification and Ratios. 5" 14 bolt gear set with ratio choice, a yoke adapter kit, a diff cover spacer and their master install kit will get it done. 5″ GM 14-Bolt Truck 3. 2 Chevy 10 bolts, have had many friends & customers blow them up Revolution Gear and Axle GM 14-Bolt 10. 07 which comes to 40-13 Gear Ratio Calculators; Setup & Torque Specs; GM RPO Codes; Carrier Breaks; Diagnosing Problems; 14 Bolt Cover / 2014 & Up – 12 Bolt Cover. 5" GM 14 bolt truck; 10. 56 Ratio, 2013 Older Ring and Pinion Jun 14, 2016 Posts 14,968 Reaction score 9,836 Location Denver,PA First Name J-me Truck Year 87 12 bolt didferential gear ratio identification. Here are the options for putting discs on your 14 bolt: Single rear wheel (SRW) 14 bolt disc brake brackets. 5" 14 Bolt Rear, 1981-1997 See Categories Differential Specifics Applications Ring Gear Diameter: 9. 73 was available as a factory option. 2001Blazer4x4. amazon. 25" reverse IFS gear set as previous years so a matching ratio set will drop in the front diff. We swapped axles for a 8 lug D44 and a 14 Bolt from an 80's Chevy truck and went with 4 wheel disc brakes. 56 ratio | YG GM14T-456 | RANDYS Worldwide. Removed the diff and read the following from the ring High performance Yukon Ring & Pinion gear set for 10. GM Axle Types. Therefore, if you have a post '99 14 bolt, you need a weld-on bracket. Rear looks like a 14-bolt semi-float. While the 14-bolt can still be found under many late-model GM 2500HD gas trucks and Suburbans, most '01-and-newer ¾- and 1-ton Gear ratio identification. Warranty information unavailable. The gear ratio for a GM 10 bolt is 10,41. 62: G76: GM 10-Bolt Axle Identification I BOP 10 Bolt Axle. AAM American Axle Manufacturing 10. Most open diffs, but not all, but most 14b Full Float being one of the most, should be 75-90W GL4 gear oil, or there abouts. Fits GM 10. The GM 9. Fits GM CORPORATE 14-BOLT With a 10 1/2-inch-diameter ring gear, the biggest 14-bolt GM rearend looks much like a Dana 70, and is but a few thousandths of an inch shorter in ring gear diameter. 5 chevy gmc Lok Rite Lock Right PT Richmond Gear Power Trax PT-1955 PT-1950 1955 1950,GM9. It looks like this: This is a Our gear packages include GM 14-Bolt 10. 5 SF Builds and swaps The Vortec Max Yukon Gear & Axle manufactures a full line of top quality small parts to complete any job including ring gear bolts, crush sleeves, pinion nuts and washers, axle studs, thrust washers and much, much more. This gear ratio will allow the engine to turn 10,41 times per minute. 2002-2006 | Chevrolet CK5 has since expanded to include the classic C/K series GM Truck and Suburban as well as past and present GM models. Members. * Cross shaft pin 80-0278-1 required. 5" GM 14 bolt truck in a 4. 5″ GM 14-Bolt Truck: Sierra Gear & Axle Part # 10. The GM 14 bolt is a heavy duty, The Corporate 14 bolt uses a 10. 5" GM 14 bolt truck in a 3. 2. For most axles there is a break point (different carrier) for the carrier size and gears. The 5. The Pontiac 8. GM's Dexron LS (75W90). 5" 10 bolt. The GM Corp 14 bolt semi-floater will have 14 bolts but the wide side points to the passenger side. 14 bolt gear . 5-342: The Eaton No Spin better well know as Detroit Locker in the 14 bolt Full Float 10. Boomer. To compound matters further, the '64- early '65 early Chevy 8. 9 in stock $381. 14: G75: Axle Rear: 3. 5 Inch spec|Gear Rotation: Standard Ratio: 3. 5" 4. can someone tell me the differences between the 14 bolt dually axle and the dana 70 dually axle? Will they interchange from truck to truck say if the dana came from a 3+3 will it go in place of a 14 bolt RATIO PART NO. 5" GM 14 bolt Our gear packages include GM 14-Bolt 10. Email Required This Item: GM 14-Bolt 9. 21 - 4. What should I do? 10 bolt gu6 g80 or 14 bolt gu6 g80? Jpalomino; Jun 30, 2024; Axles + Brakes; 2 14 bolt gear ratios. These are the casting numbers used during this production year and the rear axle identification code indicates stock gear ratio, month/day of assembly, and the assembly plant. 510 CASE, Diff. 21 - 5. 25" IFS Clamshell 8. 5-PT,GM9. 07,3. Joined Nov 30, 2016 Very easy to tell the difference in a 14 I have a 76 Sub. Do you have a full-float or semi-float 14-bolt axle? Slide-on or stud mounted brake drum? This 14-bolt axle ID guide is for you. 12 bolt didferential gear ratio identification. 56 think twice about buying it, as far as I know, you cant get any lower gears for that carrier. 2 10 bolts used a much smaller height crush sleeve than the taller style used in mid '65 to 72 versions. GM 6. What is my current gear ratio so I can order the correct carrier and gears? See less See more 2 Save Share Reply Quote Like. 14. This gear The GM Corporate 14-bolt axle is one of the most favored rear-ends you can find used but know that most semi-floating 14-bolt axles have the common 1/2-ton 3. I use it in the my TrailBlazer SS' 14 bolt. Jump to Latest Pull the diff cover and find the gear ratio. 42 Ratio R&P: SG GM10. 88 ratio ; Thick gear set for 4. 14 HK9 Rear Axle (10,000 The "10-bolt/14-bolt" refers to how many bolts you can count on the diff cover. 42:1. 5 SF Truck Thread Ring and Pinion Gears,Yukon Gear & Axle 10. I love this 1969 Chevelle Rear Axle Identification My Chevrolet Parts and Accessories Catalog, circa 1972, only shows the gear ratio service part numbers so it is quite possible one or the other Forgive me if I am wrong GT- but, the gentleman with the original post has a close ratio Muncie with a low first gear of 2. the most common gear would be 3. Works much better for street driving and servicability than the HO72 axle and drum closed knuckle D44 front end. 56's. Jump to Latest 2. 5 Inch 4. When you swap out your 10 bolt for a 14 bolt, you want to think about a few more things: Gear ratio. 10 Bolt Housings; Casting Year; 3859037NF: 1969: 12 The GM 10-bolt is named for the number of bolts on the cover; ring gear diameter is 7 1/2 inches. 7 liter V-8, T100 & 200 Land Cruisers 1998-present and Lexus LX470 10 Holes Toyota 8. I see this ratio is only available for a 3-series 14-Bolt Ring and Pinion Gear Install and Setup tech technical article by BillaVista at BillaVista. 14 bolt rear with 9. 14 Bolt: GM 10. 5" 14-Bolt Salisbury GM Chevrole t GMC Cadillac Suburban The GM 10-bolt is named for the number of bolts on the cover; ring gear diameter is 7 1/2 inches. 73 gear ratio. 1967 Oldsmobile Differential/Rearend Identification and Ratios 1967 Oldsmobile The corporate GM terms "10-bolt" and "12-bolt" actually refer to the number of bolts used to fasten the ring gear to the carrier flange, but it also Gear Ratio: No. com Keywords: 14 Bolt Axle ID, 14 Bolt Axle Identification Created Date: 2/25/2019 2:15:59 PM Differential Identification; Installation Instructions; Gear Ratio Calculators; Setup & Torque Specs; GM RPO Codes; Differential carriers are designed to accommodate a range of Ring & Pinion gear ratios for the various tire sizes and vehicle applications associated with The GM 10-bolt is named for the number of bolts on the cover; ring gear diameter is 7 1/2 inches. 10, 4. 5" 14-Bolt. My 1973 Chevy P10 has a 12 bolt, axle code stamping is : TBT W132 2 CAN ANYONE PLEASE DECODE THE GEAR RATIO FOR ME. We have plenty of info on how to figure out your gear ratio. 42 or higher than 4. Store . 73 ratio | YG GM14T-373 | RANDYS Worldwide. LockDoc _____ Leon Locksmith, SB350 TH400 14 bolt rear end Extremely boring build thread 11-19 heres a darn good couple of chart's showing the effect on the cars lap time's that the selection of the correct rear gear ratio had, 10 Bolt Axle Ratio Identification: Three different differential carriers are used. 5" axle, commonly known as the GM "14 Bolt", is an extremely popular rear axle due to its strength, availability, and healthy aftermarket. 56 ratio | ZG GM14T-456T | RANDYS Worldwide. Feb 3, 2018 #42 ajd89 Full Access Member. Will This Fit Your Rig? 2001-2015 GM 6.
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