Yukon GM 8.6" Rear Axle Shaft for GM Trucks (ABS/Disc Brakes) - 30-Spline, 34.25", 6-Lug
YA G15286380
The GM 8.6" Rear Axle Shaft is a replacement axle shaft for select Chevrolet and GMC half-ton trucks and SUVs equipped with the GM 8.6" rear differential, ABS, and rear disc brakes. Featuring a 30-spline configuration, 34.25" overall length, and 6-lug wheel flange, this shaft is designed to replace a worn, damaged, or twisted factory axle while maintaining compatibility with the correct factory-style differential and wheel-end components.
Built from heat-treated alloy steel, this axle shaft is designed to handle the torque loads found in daily-driven trucks, tow rigs, and off-road vehicles. Larger tires, increased traction, and heavy use can place additional stress on the axle shafts, making proper spline engagement, shaft length, and bearing compatibility important during replacement. This shaft is intended for compatible GM 8.6" rear axle assemblies and does not include the ABS tone ring.
Includes:
- (1) GM 8.6" Rear Axle Shaft - 30-Spline, 34.25" Length
Important: ABS tone ring is not included. Verify axle length, spline count, wheel bolt pattern, and ABS configuration before ordering.
Specifications
| Product Type | Rear Axle Shaft |
|---|---|
| Axle Platform | GM 8.6" |
| Axle Position | Rear |
| Axle Spline Count | 30-Spline |
| Overall Length | 34.25" |
| Wheel Bolt Configuration | 6-Lug |
| Material | Heat-Treated Alloy Steel |
| ABS Compatibility | Yes, Applicable Configurations |
| ABS Tone Ring Included | No |
| Brake Compatibility | Rear Disc Brake Applications |
| Vehicle Platform | GM Half-Ton Trucks & SUVs |
| Installation Type | Axle Shaft Replacement |
| Primary Application | GM 8.6" Rear Axle Repair & Replacement |
| Quantity | Sold Individually |
Fitment
Designed for select GM 8.6" rear axle applications using 30-spline axle shafts, 34.25" overall length, 6-lug wheel flanges, ABS, and rear disc brakes. Verify the installed axle and shaft dimensions before ordering.
| Make | Model | Year Range | Axle Application |
|---|---|---|---|
| Chevrolet | Silverado 1500 | 2007–2013 | GM 8.6" Rear, ABS / Disc Brakes |
| Chevrolet | Tahoe | 2007–2014 | GM 8.6" Rear, ABS / Disc Brakes |
| GMC | Sierra | 2007–2014 | GM 8.6" Rear, ABS / Disc Brakes |
| GMC | Sierra 1500 | 2007–2013 | GM 8.6" Rear, ABS / Disc Brakes |
| GMC | Yukon | 2007–2014 | GM 8.6" Rear, ABS / Disc Brakes |
| GMC | Yukon XL 1500 | 2007–2014 | GM 8.6" Rear, ABS / Disc Brakes |
Fitment Notes:
- Fits compatible GM 8.6" rear differential applications
- Requires 30-spline axle shaft configuration
- 34.25" overall axle shaft length
- Designed for 6-lug wheel flange configurations
- Compatible with applicable ABS-equipped rear disc brake assemblies
- ABS tone ring is not included
- Verify axle shaft length, spline count, wheel bolt pattern, bearing and seal compatibility before ordering
- Vehicle applications are reference fitments; factory axle equipment may vary
FAQ
What vehicles does this GM 8.6" axle shaft fit?
This shaft fits select Chevrolet Silverado 1500, Tahoe, GMC Sierra 1500, Yukon, and Yukon XL 1500 rear axle applications equipped with the GM 8.6" differential, 30-spline shafts, 6-lug wheel flanges, ABS, and rear disc brakes. Verify the installed axle and original shaft dimensions before ordering.
How do I know if my truck has a GM 8.6" rear axle?
GM used several rear axle configurations across its half-ton truck and SUV lineup. Check the axle identification, ring gear size, and original axle shaft specifications. The replacement must match the 30-spline configuration and 34.25" overall length.
Does this axle shaft include an ABS tone ring?
No. The ABS tone ring is not included. If your axle configuration requires a tone ring mounted to the shaft, confirm whether the original ring can be transferred or whether a compatible replacement is needed.
Will this axle shaft work with factory rear disc brakes?
Yes, in compatible GM 8.6" rear axle assemblies equipped with disc brakes. The axle shaft must match the original flange dimensions, wheel bolt pattern, bearing arrangement, and brake configuration.
Is this axle shaft stronger than the factory shaft?
The heat-treated alloy steel construction is designed for durability under drivetrain loads, but actual strength depends on material specifications, heat treatment, shaft geometry, and the complete axle assembly. This shaft is intended as a replacement for compatible factory-style applications rather than a guaranteed high-horsepower upgrade.
Should I replace the axle bearing and seal when installing a new shaft?
We recommend inspecting the axle bearing, seal, and bearing contact surface whenever an axle shaft is removed. Worn bearings or damaged seals can cause leaks and premature wear, so replacing questionable components during the repair can save additional work later.