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Yukon Gear ZK GM9.5-A Master Overhaul Kit for 1979-1997 GM 9.5in Differential
The Yukon Gear ZK GM9.5-A is a master overhaul kit for the 1979-1997 GM 9.5 in. differential. This comprehensive kit provides all bearings, races, seals, and small parts needed to complete a full differential rebuild in a single part number. Bearings are Koyo or Timken quality. Yukon's Lifetime Warranty is included, and Magnuson-Moss protections apply for drivetrain warranty claims.
Key Features
- Complete master overhaul kit — all bearings, races, seals, and hardware in one part number
- Koyo/Timken bearings — OEM-equivalent or better bearing quality for long service life
- Fits 1979-1997 GM 9.5 in. differential — found in full-size GM trucks and SUVs
- Eliminates parts sourcing hassle — everything required for the rebuild is included
- Yukon Lifetime Warranty — Magnuson-Moss protections apply for drivetrain warranty claims
What's Included
- Carrier bearings and races
- Pinion bearings and races
- Pinion seal
- Axle seals
- Small parts, shims, and hardware as required for a complete rebuild
Specifications
| Specification | Detail |
|---|---|
| MPN | ZK GM9.5-A |
| UPC | Not available |
| Differential | GM 9.5 in. |
| Bearing Brand | Koyo / Timken |
| Warranty | Yukon Lifetime Warranty (Magnuson-Moss applies) |
| Fitment | 1979-1997 GM 9.5 in. differential |
This Part Fits
| Year | Make | Model | Notes |
|---|---|---|---|
| 1979-1997 | Chevrolet / GMC | C/K 1500, 2500, 3500 and Suburban | Equipped with GM 9.5 in. rear differential |
Frequently Asked Questions
-
Q: What is included in the ZK GM9.5-A kit?
A: The kit includes carrier bearings and races, pinion bearings and races, pinion seal, axle seals, and all small parts required for a complete rebuild. -
Q: What bearing brand is used?
A: Koyo or Timken bearings, which are OEM-equivalent quality brands used by major automakers. -
Q: Is this a universal kit or differential-specific?
A: Differential-specific. The ZK GM9.5-A is engineered specifically for the GM 9.5 in. differential. -
Q: Does this kit include ring and pinion gears?
A: No. This is a bearing and overhaul kit only. Ring and pinion gears are sold separately. -
Q: Does Yukon offer a warranty?
A: Yes. Yukon Gear provides a Lifetime Warranty. Magnuson-Moss protections apply for qualifying drivetrain applications. -
Q: What vehicles use the GM 9.5 in. differential?
A: The GM 9.5 in. rear differential was used in 1979-1997 full-size GM C/K trucks and Suburbans. -
Q: Is the A suffix significant?
A: The A suffix indicates a specific bearing and seal configuration. Confirm your differential's exact specifications match before ordering. -
Q: Should I replace the ring and pinion at the same time?
A: If the ring and pinion shows wear or the differential has high mileage, it is best practice to replace the gear set and overhaul kit together.
Installation Instructions
Clean and inspect the differential case thoroughly before beginning the rebuild. Use a differential bearing press for carrier and pinion bearing installation. Set pinion depth and carrier preload per Yukon and OEM specifications using the included shims. Set ring and pinion backlash to specification. Torque all fasteners to OEM spec. Fill with the correct differential fluid type and quantity per the vehicle service manual. Test for noise and leaks before returning to service.
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