Yukon GM 14-Bolt Master Overhaul Kit ('88 & older)
YKGM14T-A
\yYukon Master Overhaul Kits give you everything you need to start and finish your GM 14-Bolt differential rebuild with confidence. Designed for 1988 and older GM 10.5" 14 Bolt truck axles, this kit uses Timken bearings and races to ensure long lasting performance and precise fitment. Every component is made from premium materials to restore your differential’s performance and reliability.
Includes:
- Timken carrier bearings and races
- Timken pinion bearings and races
- Pilot bearing
- Pinion seal
- Complete shim kit
- Pinion nut
- Crush sleeve
- Thread locker
- Marking compound with brush
- Gasket
Note: Ring gear bolts are not included in this kit.
Specifications
| Specification | Detail |
| Brand | Yukon Gear & Axle |
| Bearing Type | Timken |
| Axle Model | GM 10.5" 14 Bolt (1988 & older) |
| Ring Gear Diameter | 10.5 inches |
| Compatibility | Rear Differential |
| Includes | Bearings, races, seals, shims, nut, crush sleeve, marking compound, gasket |
| Excludes | Ring gear bolts |
Fitment
| Year | Make | Model |
|---|---|---|
| 1975 - 1983, 1986 | Chevrolet | C20 |
| 1973 - 1974 | Chevrolet | C20 Pickup |
| 1973 - 1974 | Chevrolet | C20 Suburban |
| 1975 - 1983, 1986 | Chevrolet | C20 Suburban |
| 1988 | Chevrolet | C2500 |
| 1975 - 1983, 1986 | Chevrolet | C30 |
| 1973 - 1974 | Chevrolet | C30 Pickup |
| 1988 | Chevrolet | C3500 |
| 1975 - 1983, 1986 - 1988 | Chevrolet | G20 |
| 1979 - 1983, 1986 - 1988 | Chevrolet | G30 |
| 1975 - 1976 | Chevrolet | K20 |
| 1977 - 1983, 1986 | Chevrolet | K20 |
| 1973 - 1974 | Chevrolet | K20 Pickup |
| 1973 - 1974 | Chevrolet | K20 Suburban |
| 1975 - 1983, 1986 | Chevrolet | K20 Suburban |
| 1988 | Chevrolet | K2500 |
| 1977 - 1983, 1986 | Chevrolet | K30 |
| 1972 - 1974 | Chevrolet | K30 Pickup |
| 1988 | Chevrolet | K3500 |
| 1987 - 1988 | Chevrolet | R20 |
| 1987 - 1988 | Chevrolet | R20 Suburban |
| 1987 - 1988 | Chevrolet | R30 |
| 1987 | Chevrolet | V20 |
| 1987 - 1988 | Chevrolet | V20 Suburban |
| 1987 - 1988 | Chevrolet | V30 |
| 1975 - 1978 | GMC | C25 |
| 1975 - 1978 | GMC | C25 Suburban |
| 1973 - 1974 | GMC | C25/C2500 Pickup |
| 1973 - 1974 | GMC | C25/C2500 Suburban |
| 1979 - 1983, 1986 | GMC | C2500 |
| 1979 - 1983, 1986 | GMC | C2500 Suburban |
| 1975 - 1978 | GMC | C35 |
| 1973 - 1974 | GMC | C35/C3500 Pickup |
| 1988 | GMC | C3500 |
| 1979 - 1983, 1986 | GMC | C3500 |
| 1981 - 1983, 1986 - 1987 | GMC | G1500 |
| 1979 - 1983, 1986 - 1988 | GMC | G3500 |
| 1975 - 1978 | GMC | K25 |
| 1975 - 1978 | GMC | K25 Suburban |
| 1967 - 1974 | GMC | K25/K2500 Pickup |
| 1973 - 1974 | GMC | K25/K2500 Suburban |
| 1988 | GMC | K2500 |
| 1979 - 1983, 1986 | GMC | K2500 |
| 1979 - 1983, 1986 | GMC | K2500 Suburban |
| 1977 - 1978 | GMC | K35 |
| 1979 - 1983, 1986, 1988 | GMC | K3500 |
| 1987 | GMC | R2500 |
| 1987 - 1988 | GMC | R2500 Suburban |
| 1987 | GMC | R3500 |
| 1987 | GMC | V2500 |
| 1987 - 1988 | GMC | V2500 Suburban |
| 1987 | GMC | V3500 |
Tech Insight
This Yukon Gear & Axle Master Overhaul Kit is the go-to rebuild solution for the legendary GM 14-Bolt 10.5" full-float rear axle used from the early 1970s through 1988. The 14 Bolt axle is renowned for its strength and reliability in heavy-duty applications—making it a favorite among off-roaders, rock crawlers, and truck restorers. By using Timken bearings and precision-fit seals, this kit ensures proper preload, quiet operation, and maximum durability, whether you’re restoring a classic K30 or building a trail-ready rig.