Availability
1981 GMC K1500 Differential & Rear-End Components
Spool, Full Size, Steel, 28-Spline, 10-Bolt, GM 8.5 in., Each
Part Number: RMG-81-1028-1
Estimated Ship Date: Mar 30, 2026 if ordered today
Estimated Ship Date: Mar 30, 2026 if ordered today
Mini Spool, MINI SPOOL GM 12 BOLT CAR
Part Number: RMG-XL-5145
Not Yet Reviewed
Estimated Ship Date: Mar 30, 2026 if ordered today
Estimated Ship Date: Mar 30, 2026 if ordered today
Differential Spool Bearing Kit; Fits GM 8.5 in. 10 Bolt; Incl. Bearings/Bearing Races
Part Number: RMG-29-0013-1
Estimated Ship Date: Mar 30, 2026 if ordered today
Estimated Ship Date: Mar 30, 2026 if ordered today
Ring and Pinion Gears, 5.13:1 Ratio, 30-spline, Standard Ring Gear Rotation, GM 8.5/8.6 in., Set
Part Number: YGA-24163
Not Yet Reviewed
Estimated Ship Date: Apr 6, 2026 if ordered today
Estimated Ship Date: Apr 6, 2026 if ordered today
Yukon steel spool for GM 8.5" & 8.6" with 30 spline axles
Part Number: YGA-32193
Not Yet Reviewed
Estimated Ship Date: Apr 6, 2026 if ordered today
Estimated Ship Date: Apr 6, 2026 if ordered today
Axle Shafts Direct Fit, 12T 6 LUG 31-7/16"Axle, 70 to 81', 4WD, GM 30spl
Part Number: SPZ-35187
Not Yet Reviewed
Estimated Ship Date: Mar 23, 2026 if ordered today
Estimated Ship Date: Mar 23, 2026 if ordered today
Gear, Ring and Pinion, 3.73:1 Ratio, GM 8.5/8.625 in., Set
Part Number: RNB-697-301
Not Yet Reviewed
Estimated Ship Date: Mar 30, 2026 if ordered today
Estimated Ship Date: Mar 30, 2026 if ordered today
USA Standard Gear standard spider gear set for GM 8.5", 30 spline
Part Number: SPZ-39027
Not Yet Reviewed
Estimated Ship Date: Mar 23, 2026 if ordered today
Estimated Ship Date: Mar 23, 2026 if ordered today
Axle Shaft, 28-Spline, 19.100 in. Length, Front, Inner, GM, Each
Part Number: YGA-21063
Not Yet Reviewed
Estimated Ship Date: Apr 7, 2026 if ordered today
Estimated Ship Date: Apr 7, 2026 if ordered today
GM 8.5" 28spl 4340 FRONT AXLE KIT, w/ 297X, 79-87 1/2TON TRK & BLAZER
Part Number: SPZ-35064
Not Yet Reviewed
Estimated Ship Date: Mar 23, 2026 if ordered today
Estimated Ship Date: Mar 23, 2026 if ordered today
Star washer for GM 12 bolt posi cross pin bolt.
Part Number: YGA-33348
Not Yet Reviewed
Estimated Ship Date: Apr 6, 2026 if ordered today
Estimated Ship Date: Apr 6, 2026 if ordered today
USA Standard Ring & Pinion gear set for GM 12 bolt truck in a 4.56 ratio
Part Number: SPZ-36179
Not Yet Reviewed
Estimated Ship Date: Mar 23, 2026 if ordered today
Estimated Ship Date: Mar 23, 2026 if ordered today
Axle Bearings, 30-spline, 12-bolt, Standard Rotation, Rear, Chevy, GMC, GM 8.875 in. Truck, Kit
Part Number: YGA-11055
Not Yet Reviewed
Estimated Ship Date: Apr 7, 2026 if ordered today
Estimated Ship Date: Apr 7, 2026 if ordered today
Yukon Bearing install kit for GM 8.5" HD front differential
Part Number: YGA-11070
Not Yet Reviewed
Estimated Ship Date: Apr 7, 2026 if ordered today
Estimated Ship Date: Apr 7, 2026 if ordered today
Ring and Pinion Gear Installation Kit, Minimum Install, 30-spline, Standard Rotation, Front, GM 8.5 in. (Truck, Front), Kit
Part Number: YGA-12056
Not Yet Reviewed
Estimated Ship Date: Apr 7, 2026 if ordered today
Estimated Ship Date: Apr 7, 2026 if ordered today
High performance Yukon Ring & Pinion gear set for GM 12 bolt truck in a 5.13 ratio
Part Number: YGA-24463
Not Yet Reviewed
Estimated Ship Date: Apr 6, 2026 if ordered today
Estimated Ship Date: Apr 6, 2026 if ordered today
Premium Ring And Pinion Master Bearing And Installation Kit
Part Number: RNB-797-100
Not Yet Reviewed
Estimated Ship Date: Mar 30, 2026 if ordered today
Estimated Ship Date: Mar 30, 2026 if ordered today
Premium Ring And Pinion Master Bearing And Installation Kit
Part Number: RNB-797-105
Not Yet Reviewed
Estimated Ship Date: Mar 30, 2026 if ordered today
Estimated Ship Date: Mar 30, 2026 if ordered today
Differential Ring And Pinion Set
Part Number: RNB-697-318
Not Yet Reviewed
Estimated Ship Date: Mar 30, 2026 if ordered today
Estimated Ship Date: Mar 30, 2026 if ordered today
Ring and Pinion Bearing Installation Kit
Part Number: RNB-697-105
Not Yet Reviewed
Estimated Ship Date: Mar 30, 2026 if ordered today
Estimated Ship Date: Mar 30, 2026 if ordered today
12T GM BEARING & SEAL KIT, KOYO BRGS
Part Number: SPZ-58045
Not Yet Reviewed
Estimated Ship Date: Mar 24, 2026 if ordered today
Estimated Ship Date: Mar 24, 2026 if ordered today
Crosspin, Replacement, Steel, Spartan, Rear, GM 8.875 in., Each
Part Number: SPZ-17023
Estimated Ship Date: Mar 24, 2026 if ordered today
Estimated Ship Date: Mar 24, 2026 if ordered today
Differential Ring and Pinion; GM 12 Bolt 8.875 - Thick Gear, 4.56 Ratio
Part Number: SVL-10004683
Not Yet Reviewed
Estimated Ship Date: Mar 23, 2026 if ordered today
Estimated Ship Date: Mar 23, 2026 if ordered today
Performance Mini Spool (GM 8.5 - 28 Spline)
Part Number: SDH-10015373
Not Yet Reviewed
Estimated Ship Date: Apr 14, 2026 if ordered today
Estimated Ship Date: Apr 14, 2026 if ordered today
Chromoly Front Axle Shaft - Inner (Dana 60) RH
Part Number: SDH-10007808
Estimated Ship Date: Apr 14, 2026 if ordered today
Estimated Ship Date: Apr 14, 2026 if ordered today
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