Availability
OLDSMOBILE Differential & Rear-End Components
Estimated Ship Date: Today
Differential Vent, Round Head Style, Plastic, White, Buick, Chevy, Oldsmobile, Pontiac, Each
Part Number: OPG-C220128
Estimated Ship Date: Today
Estimated Ship Date: Today
Ring and Pinion Gears,Yukon Gear & Axle 7.5"/7.625" GM, 3.73 Ratio Rear Ring & Pinion GearInstall Kit 28 Spline and 2.25" OD Axle Bearings & Seals
Part Number: YGA-10646
Not Yet Reviewed
Estimated Ship Date: May 29, 2026 if ordered today
Estimated Ship Date: May 29, 2026 if ordered today
Axle Shaft, C-clip Type, 28-spline Inner, 1541 Carbon Steel, Rear, GM 7.5 in., Buick, Chevy, Pontiac, Kit
Part Number: RNB-630-114
Not Yet Reviewed
Estimated Ship Date: May 18, 2026 if ordered today
Estimated Ship Date: May 18, 2026 if ordered today
Differential Drain Plug, Rear Axle Position, Internal Square Drive Head, Steel, 1/2 in. NPT Threads, Buick, Chevy, Oldsmobile, Pontiac, Each
Part Number: OPG-CH28892
Estimated Ship Date: Today
Estimated Ship Date: Today
Gear, Ring and Pinion, 3.23:1 Ratio, GM, 7.5 in./7.625 in., 10-Bolt, 3 Series, Set
Part Number: RMG-4900441
Estimated Ship Date: Today
Estimated Ship Date: Today
Ring and Pinion Gears,Yukon Gear & Axle 7.5" GM, 4.11 Ratio Rear Ring & Pinion GearInstall Kit 26 Spline and 2.25" OD Axle Bearings & Seals
Part Number: YGA-10643
Not Yet Reviewed
Estimated Ship Date: May 29, 2026 if ordered today
Estimated Ship Date: May 29, 2026 if ordered today
8.5" GM PINION KIT, KOYO BRGS
Part Number: SPZ-60012
Not Yet Reviewed
Estimated Ship Date: May 14, 2026 if ordered today
Estimated Ship Date: May 14, 2026 if ordered today
Carrier Shims, Ford 8.8 in., GM 12-Bolt Truck, GM 9.3 in. C-Axle, Kit
Part Number: RMG-3800071
Estimated Ship Date: Today
Estimated Ship Date: Today
Axle Shaft, 28-Spline, 29.00 in. Length, Chevy, GMC, Oldsmobile, 7.625 in., Rear, Each
Part Number: RMG-92-25168
Estimated Ship Date: Today
Estimated Ship Date: Today
Ring and Pinion Gears and Installation Kit, 8.5" GM 3.73 REAR R&P GEAR/ INSTALL KIT PACKAGE with AK 1563 AXLE BRGS (2.25" OD)
Part Number: YGA-12622
Not Yet Reviewed
Estimated Ship Date: May 29, 2026 if ordered today
Estimated Ship Date: May 29, 2026 if ordered today
Ring and Pinion Gears and Installation Kit, 8.5" GM 3.42 REAR R&P GEAR/ INSTALL KIT PACKAGE with AK 1563 AXLE BRGS (2.25" OD)
Part Number: YGA-12621
Not Yet Reviewed
Estimated Ship Date: May 29, 2026 if ordered today
Estimated Ship Date: May 29, 2026 if ordered today
Axle Shaft, OEM Replacement, C-clip, 1541H Alloy Steel, 28-spline Inner, 30.125 in. Length, Each
Part Number: MGR-MG1015
Estimated Ship Date: Today
Estimated Ship Date: Today
Bearing, Pinion, 1.312 in. Inside Diameter, Each
Part Number: NTL-M88048
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Ring and Pinion Gear, 3.08:1 Ratio, GM, 8.5 in./8.6 in., Rear, Set
Part Number: SPZ-36211
Not Yet Reviewed
Estimated Ship Date: May 14, 2026 if ordered today
Estimated Ship Date: May 14, 2026 if ordered today
Differential, Eaton Detroit Locker, 28-Spline, GM, 8.5 in., 3-Series, Each
Part Number: ETN-187C149A
Not Yet Reviewed
Estimated Ship Date: May 22, 2026 if ordered today
Estimated Ship Date: May 22, 2026 if ordered today
Differential, Auburn, Grip-N-Loc, Limited Slip, 26-Spline, GM, 7.5 in., 7.625 in., Each
Part Number: AUB-546045
Estimated Ship Date: Jun 5, 2026 if ordered today
Estimated Ship Date: Jun 5, 2026 if ordered today
Ring and Pinion Installation Kit, GM, 7.5 in./7.625 in., 10-Bolt, 1977-1981, 27-Spline Pinion, Kit
Part Number: RMG-8310161
Estimated Ship Date: Today
Estimated Ship Date: Today
Gear, Ring and Pinion, 2.73:1 Ratio, GM 8.5 in., Set
Part Number: RNB-697-812
Estimated Ship Date: Today
Estimated Ship Date: Today
Gear, Ring and Pinion, EXCel, 3.73:1 Ratio, GM, 8.875 in., 12-Bolt Car, Set
Part Number: RMG-12BC373
Estimated Ship Date: May 18, 2026 if ordered today
Estimated Ship Date: May 18, 2026 if ordered today
Differential Cross Shaft Bolt, Hex Head, GM 7.5, GM 7.625, 10-Bolt, Each
Part Number: MGR-14056196
Estimated Ship Date: Today
Estimated Ship Date: Today
Ring and Pinion Gears, 3.42:1 Ratio, 30-spline, Standard Ring Gear Rotation, GM 8.5/8.6 in., Set
Part Number: SPZ-36213
Not Yet Reviewed
Estimated Ship Date: May 15, 2026 if ordered today
Estimated Ship Date: May 15, 2026 if ordered today
Need It Sooner? We recommend these similar substitute parts:
Motive Gear Ring and Pinion Sets GM10-342A GM 8.5/8.625 in. 3.42 Gears
Estimated Ship Date: Today
Crate Axle, 64-66 GM A-Body Centurion 9-Inch, Black PC, 31-Spline, 3.50 Ratio, Helical Limited Slip, Wilwood 11" Dynapro Black Calipers
Part Number: CUR-CR-GA135TWAB
Not Yet Reviewed
Estimated Ship Date: Jun 1, 2026 if ordered today
Estimated Ship Date: Jun 1, 2026 if ordered today
Crate Axle, 78-88 GM G-Body Centurion 9-Inch, Black PC, 31-Spline, 3.50 Ratio, Helical Limited Slip, 11" Wilwood 11" Dynapro Black Calipers
Part Number: CUR-CR-GG135TWAB
Not Yet Reviewed
Estimated Ship Date: Jun 1, 2026 if ordered today
Estimated Ship Date: Jun 1, 2026 if ordered today
Spider Gear Kit, Open Differential, G7.625 in., 28 Spline, Kit
Part Number: YGA-16049
Estimated Ship Date: Today
Estimated Ship Date: Today
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