Availability
Spool, Mini, Steel, 30-Spline, 12-Bolt, GM 8.875 in., Each
Part Number: MGR-MS12C
Estimated Ship Date: Tomorrow
Estimated Ship Date: Tomorrow
Ring and Pinion Installation Kit, Super Kit, GM, 8.875 in., Kit
Part Number: MGR-R12CRSKT
Estimated Ship Date: Tomorrow
Estimated Ship Date: Tomorrow
Bearing Race, Pinion, 3.250 in. Diameter, Each
Part Number: TMK-M802011
Estimated Ship Date: Tomorrow
Estimated Ship Date: Tomorrow
Spool, Full Size, Steel, 28-Spline, 10-Bolt, GM 8.5 in., Each
Part Number: MGR-FS10-28
Estimated Ship Date: Tomorrow
Estimated Ship Date: Tomorrow
Bearing Race, Differential Pinion, 2.687 in. Outside Diameter, Each
Part Number: TMK-M88010
Estimated Ship Date: Tomorrow
Estimated Ship Date: Tomorrow
Ring and Pinion Installation Kit, 12-bolt, 30-spline, Rear, GM 8.875 in. Passenger Car, Kit
Part Number: MGR-R12CRMK
Estimated Ship Date: Tomorrow
Estimated Ship Date: Tomorrow
Gear, Ring and Pinion, 4.33:1 Ratio, GM, 12-Bolt Car, 4 Series, Set
Part Number: RMG-6903781
Not Yet Reviewed
Estimated Ship Date: Tomorrow
Estimated Ship Date: Tomorrow
Estimated Ship Date: Tomorrow
Differential Carrier Rebuild Kits and Spider Gears, GM 8.5 in., Side Gears, 28-spline, 10-bolt, Buick, Chevrolet, GMC, Oldsmobile, Pontiac, Kit
Part Number: SPZ-39026
Estimated Ship Date: Tomorrow
Estimated Ship Date: Tomorrow
Carrier Shims, Steel, Ford 8.8 in., GM, 8.0, 8.6, 8.75, 8.875 in., Kit
Part Number: YGA-55002
Estimated Ship Date: Tomorrow
Estimated Ship Date: Tomorrow
Ring and Pinion Gears and Installation Kit, 12P 8.875" GM 3.73 REAR R&P GEAR/ INSTALL KIT PACKAGE with AK 1563 AXLE BRGS (2.25" OD)
Part Number: YGA-12607
Not Yet Reviewed
Estimated Ship Date: Oct 21, 2025 if ordered today
Estimated Ship Date: Oct 21, 2025 if ordered today
Ring and Pinion Gear, 4.30:1 Ratio, GM, 8.5 in./8.6 in., Rear, Set
Part Number: SPZ-36217
Not Yet Reviewed
Estimated Ship Date: Oct 7, 2025 if ordered today
Estimated Ship Date: Oct 7, 2025 if ordered today
Gear, Ring and Pinion, EXCel, 3.55:1 Ratio, GM, 8.875 in., 12-Bolt Car, Set
Part Number: RMG-12BC355
Estimated Ship Date: Tomorrow
Estimated Ship Date: Tomorrow
Estimated Ship Date: Tomorrow
Ring and Pinion Installation Kit, Master Kit, GM, 8.5 in., Kit
Part Number: MGR-R10REMK
Estimated Ship Date: Tomorrow
Estimated Ship Date: Tomorrow
Ring and Pinion Gears, 3.23:1 Ratio, GM 8.5 in., Set
Part Number: SVL-2023698
Not Yet Reviewed
Estimated Ship Date: Tomorrow
Estimated Ship Date: Tomorrow
Pinion Nut, Steel, GM, 8.875 in., Corvette, Each
Part Number: MGR-3752901
Estimated Ship Date: Tomorrow
Estimated Ship Date: Tomorrow
Axle, C-Clip, Rear, 1541H Alloy Steel, 28-spline, Chevy, Pontiac, 8.5 in., Each
Part Number: MSR-A102803-1
Estimated Ship Date: Tomorrow
Estimated Ship Date: Tomorrow
Spartan Differential Locker, GM 8.5 in., 28-spline Axle, Buick, Oldsmobile, Pontiac, Chevy, GMC, Each
Part Number: SPZ-17040
Estimated Ship Date: Tomorrow
Estimated Ship Date: Tomorrow
USA Standard Master Overhaul kit GM 8.5 in., Rear, Kit
Part Number: SPZ-37057
Estimated Ship Date: Tomorrow
Estimated Ship Date: Tomorrow
Differential Carrier Cases, GM 8.5 in., 28/30 Spline, 2.73 and Up Ratio, Each
Part Number: YGA-20083
Estimated Ship Date: Tomorrow
Estimated Ship Date: Tomorrow
Differential Side Bearing Spacer; Differential Carrier Shims; For Ford 7.5 in./GM 7.5 in./GM 8.5 in./GM 8.2 in
Part Number: RMG-3800061
Estimated Ship Date: Tomorrow
Estimated Ship Date: Tomorrow
Spider Gear Kit, Open Differential, GM 8.875 in., 30 Spline, Kit
Part Number: YGA-16043
Estimated Ship Date: Tomorrow
Estimated Ship Date: Tomorrow
Ring and Pinion Installation Kit, Basic, GM 8.5 in., Front/Rear, Kit
Part Number: MGR-R10RPK
Not Yet Reviewed
Estimated Ship Date: Tomorrow
Estimated Ship Date: Tomorrow
Differential Cover, 12-bolt, Aluminum, Polished, GM 8.875 in. Passenger Car, Each
Part Number: YGA-32101
Estimated Ship Date: Tomorrow
Estimated Ship Date: Tomorrow
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