Availability
OLDSMOBILE Differential & Rear-End Components
Gear, Ring and Pinion, 4.88:1 Ratio, GM, 8.5/8.6 in., 10-Bolt, 3 Series, Set
Part Number: RMG-6901691
Estimated Ship Date: Today
Estimated Ship Date: Today
Crush Sleeve Eliminator Kit, Steel Spacer, Pinion Shims, GM 7.5 in., GM 7.6 in., GM 8.2 in., Kit
Part Number: YGA-55047
Estimated Ship Date: Today
Estimated Ship Date: Today
Differential, Select-A-Loc, Locker, 30-Spline, Buick, Chevy 8.5 in., Each
Part Number: AUB-545004
Estimated Ship Date: Mar 2, 2026 if ordered today
Estimated Ship Date: Mar 2, 2026 if ordered today
Ring and Pinion Installation Kit, GM, 12-Bolt Car, Kit
Part Number: MGR-R12CR
Estimated Ship Date: Today
Estimated Ship Date: Today
Differential Carrier Cases, GM 8.5 in., 28/30 Spline, 2.73 and Up Ratio, Each
Part Number: YGA-20083
Estimated Ship Date: Today
Estimated Ship Date: Today
Gear, Ring and Pinion, 3.23:1 Ratio, GM, 7.5 in./7.625 in., 3 Series, Set
Part Number: MGR-G875323
Estimated Ship Date: Today
Estimated Ship Date: Today
USA Standard Master Overhaul kit GM 8.5 in., Rear, Kit
Part Number: SPZ-37057
Estimated Ship Date: Today
Estimated Ship Date: Today
USA Standard Master Overhaul kit GM 7.5 in./7.625 in, Rear, Kit
Part Number: SPZ-37049
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Performance Mini Spool (GM 8.5 - 30 Spline)
Part Number: SDH-10015388
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
RING AND PINION
Part Number: YGA-24689
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Spool, Mini, Steel, 28-Spline, GM 7.625 in., Each
Part Number: MGR-MS75-28
Estimated Ship Date: Today
Estimated Ship Date: Today
Gear, Ring and Pinion, 2.73:1 Ratio, GM, 8.5/8.6 in., Set
Part Number: MGR-GM10-273
Estimated Ship Date: Today
Estimated Ship Date: Today
Axle Shaft, OEM Replacement, C-clip, 1541H Alloy Steel, 28-spline Inner, 29.625 in. Length, Each
Part Number: MGR-MG1010
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Differential Carrier Bearings, Steel, GM 8.5 in., Kit
Part Number: YGA-57009
Estimated Ship Date: Today
Estimated Ship Date: Today
Gear, Ring and Pinion, 3.73:1 Ratio, 1.438 in. Pinion, 27 Spline, 7.500 in. Ring Gear, GM 7.5/7.6 in., Set
Part Number: YGA-24146
Estimated Ship Date: Today
Estimated Ship Date: Today
Pinion Bearing, Tapered Cone, 1.875 in. I.D., Cadillac, Chevrolet, GMC, Dodge, Oldsmobile, Pontiac, Each
Part Number: TMK-HM804846
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Differential, Auburn, Grip-N-Loc, Limited Slip, 28-Spline, GM, 7.5 in., 7.625 in., Each
Part Number: AUB-546046
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Gear, Ring and Pinion, EXCel, 4.56:1 Ratio, GM, 7.5/7.625 in., 10-Bolt, Set
Part Number: RMG-GM75456
Estimated Ship Date: Today
Estimated Ship Date: Today
Gear, Ring and Pinion, 3.42:1 Ratio, GM, 7.5 in./7.625 in., 10-Bolt, 3 Series, Set
Part Number: RMG-4900451
Estimated Ship Date: Today
Estimated Ship Date: Today
Spool, Mini, Steel, 30-spline, 10-bolt, GM 8.5 in., Each
Part Number: YGA-32233
Estimated Ship Date: Today
Estimated Ship Date: Today
Ring and Pinion Installation Kit, GM 8.5 in., Rear, Kit
Part Number: SPZ-37055
Estimated Ship Date: Feb 16, 2026 if ordered today
Estimated Ship Date: Feb 16, 2026 if ordered today
Differential Parts Kit; Open Differential Internal Kit; Incl. Side And Pinion Gears/Washers/Pinion Shaft And L
Part Number: MGR-GM12BI
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Ring and Pinion Installation Kit, Super Kit, GM, 8.875 in., Kit
Part Number: MGR-R12CRSK
Estimated Ship Date: Today
Estimated Ship Date: Today
Axles, Direct Fit, C-Clip, Rear, 1541H Steel, 28-Spline, GM G-Body, 7.5 in., Each
Part Number: MSR-A102810-1
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Axles, Direct Fit, C-Clip, Rear, 1541H Steel, 28-Spline, Buick, Chevy, Oldsmobile, Pontiac, 7.5 in., Pair
Part Number: MSR-A102801
Estimated Ship Date: Today
Estimated Ship Date: Today
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