\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.