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Filthy Motorsports: Store > GM 10.5" 14 Bolt
GM 10.5" / Corporate 14 Bolt Axle Parts, Gears, and Upgrades

Axle Specifications:

Ring Gear Diameter: 10.500
Diff Cover Bolts: 14
Ring Gear Bolts: 12
Axle Spline Count: 30
Axle Shaft Style: Full-Floating
C-Clips: No
Crush Sleeve Yes
Pinion Diameter: 1.75"
Pinion Splines: 30
Pinion Nut: 1-1/2"
Pinion Support: Yes
Carrier Breaks: 4.10 / 4.56
Dropout Carrier: No
Max Output Torque: Up to 6,250 ft-lbs
Axle Weight: 500-600 lbs.

Torque Specifications:

Pinion Preload New: 20 to 35 in-lbs
Pinion Preload Reused: 8 to 11 in-lbs
Ring Gear Backlash: .006" to .010"
Ring Gear Bolt Torque: 120 ft-lbs
Carrier Bearing Caps: 135 ft-lbs

Gear Oil:

Mineral Oil: Valvoline 80W-90
Full Synthetic: Mobil 1 75W-90
Recommended: Mobil 1 75W-140
Oil Capacity: 3.25 qt. / Fill to Plug

Popular Applications:

Chevy C20 / C35 1973 - 2002 Rear
GMC K20 / K35 1972 - 2000 Rear
GMC G15 / G35 Van 1975 - 1996 Rear
Chevy Suburban 1973 - 2011 Rear
Chevy Silverado HD 1999 - 2011 Rear
GMC Sierra 2500 1999 - 2011 Rear
Chevy Avalanche 2002 - 2006 Rear
GMC Yukon 2500 1992 - 2010 Rear

Axle Images:


GM 14 Bolt Axle GM 14 Bolt Axle GM 14 Bolt Axle
GM 10.5 Axle GM 10.5 Axle GM 10.5 Axle


References and Resources:

14-Bolt Axle Builder (Find Compatible Parts)

Axle Variations:

'88 and Older - 4 ribs around axle housing.

'89 to '98 - 16 ribs. Different pinion bearing.

'98 and Newer - 16 ribs. Different pinion seal.


Axle Details

The GM 10.5" 14 Bolt axle, also known as the GM 14 Bolt and Corporate 14 Bolt has been in use by Chevy and GMC since 1973 and features a large 10.5" diameter ring gear, pinion support, and 30 spline full-floating axle shafts. They are only available in solid rear axle configurations and although they are usually found with drum brakes, disc brake conversions are readily available along with many other aftermarket parts and upgrades.


Axle Builder


Note: This axle has a Carrier Break and gear changes may require a different carrier or thick gears.
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Crown Race Gears Ring and Pinion Sets
Crown Race Gears for GM 10.5" 14 Bolt Axles (Race Spec)
Price: $1,099.95

Crown Race Gears are forged, precision CNC cut, two stage shot peened, cryogenically treated, and REM ISF Superfinished to be the toughest, most efficient, and longest lasting race-grade ring and pinion gears available today. Lifetime warranty and 5-year renewable race use warranty. more info
Eaton Detroit TrueTrac
GM 14 Bolt / GM 10.5" Eaton TrueTrac | 30 Spline (4.10 & Down)
Price $876.99

Detroit Truetrac Lockers are maintenance free, fully mechanical, Torsen style limited slip differentials with helical gears instead of clutch packs (which wear out over time) to provide constant torque to both wheels while still allowing for smooth turns on pavement. more info
Eaton Detroit TrueTrac
GM 14 Bolt / GM 10.5" Eaton TrueTrac | 30 Spline (4.10 & Down) | Cryo Treated
Price $976.95
Sale Price: $869.95

Cryogenically Treated TrueTrac Differentials have improved strength, durability, and wear resistance over standard units. They are maintenance free, fully mechanical, Torsen style limited slip differentials with helical gears that provide torque to both wheels at all times. more info
Detroit Locker
GM 14 Bolt / GM 10.5" Detroit Locker | 30 Spline
Price $601.99

Detroit Lockers have a legendary reputation with off-roaders and feature a heavy duty, efficient, and effective design that offers 100% traction to both wheels while still allowing for wheel speed differentiation for easy turning on the street and other high-traction surfaces. more info
Yukon Master Ring and Pinion Install Kit
GM 14 Bolt / GM 10.5" Yukon Master Overhaul Kit | '88 and Older
List Price: $409.89

Yukon master overhaul kits include everything you need to rebuild your differential, install new ring and pinion gears or add a differential locker. Every component is of the highest quality and engineered specifically for your application to ensure accurate set up. more info
Yukon Master Ring and Pinion Install Kit
GM 14 Bolt / GM 10.5" Yukon Master Overhaul Kit | '89 to '98
List Price: $522.89

Yukon master overhaul kits include everything you need to rebuild your differential, install new ring and pinion gears or add a differential locker. Every component is of the highest quality and engineered specifically for your application to ensure accurate set up. more info
Yukon Master Ring and Pinion Install Kit
GM 14 Bolt / GM 10.5" Yukon Master Overhaul Kit | '98 and Newer
List Price: $549.89

Yukon master overhaul kits include everything you need to rebuild your differential, install new ring and pinion gears or add a differential locker. Every component is of the highest quality and engineered specifically for your application to ensure accurate set up. more info
Yukon Minor Ring and Pinion Install Kit
GM 14 Bolt / GM 10.5" Yukon Minor Overhaul Kit | '88 and Older
List Price: $99.89

Yukon minor overhaul kits include all of the seals, shims, and small parts you need to install new ring and pinion gears or add a differential locker (using the existing bearings). Every part is of the highest quality and made specifically for each axle application. more info
Yukon Minor Ring and Pinion Install Kit
GM 14 Bolt / GM 10.5" Yukon Minor Overhaul Kit | '89 and Newer
List Price: $99.89

Yukon minor overhaul kits include all of the seals, shims, and small parts you need to install new ring and pinion gears or add a differential locker (using the existing bearings). Every part is of the highest quality and made specifically for each axle application. more info
Yukon Gear and Axle Ring and Pinion Sets
GM 14 Bolt / GM 10.5" Yukon Ring and Pinion Gears | 4.88 (Thick)
List Price: $478.89

Yukon ring and pinion gears are built for heavy duty applications like racing, towing, and rock crawling. They're machined from the finest materials using modern gear grinding technology to give each set superior strength and the smoothest and most precise finish. more info
   
 


Don't see the particular axle or drivetrain parts you need? We carry more products and brands than we can make available on this website so give us a call or send us an email and chances are we can get what you need at a great price. Also, below you will find links to a few popular products we don't sell directly but recommend often for GM 10.5" axles that are available on Amazon:


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