Availability
BUICK Differential & Rear-End Components
Differential, No-Slip Traction System, 30-Spline, GM, 12-Bolt, Each
Part Number: PWT-92-0788-3005
Estimated Ship Date: Today
Estimated Ship Date: Today
Differential, Auburn, Grip-N-Loc, Limited Slip, 30-Spline, GM, 8.5/8.6 in., 2.73 Ratio and up, Each
Part Number: AUB-546022
Estimated Ship Date: Today
Estimated Ship Date: Today
Gear, Ring and Pinion, 5.38:1 Ratio, GM, 12-Bolt Car, 4 Series, Set
Part Number: RMG-7900291
Estimated Ship Date: Today
Estimated Ship Date: Today
Differential, Posi Performance, Limited Slip, 26-Spline, GM, 7.5 in., Each
Part Number: ETN-19663-010
Estimated Ship Date: Today
Estimated Ship Date: Today
Differential, Auburn, Grip-N-Loc, Limited Slip, 28-Spline, Buick, Oldsmobile, Pontiac, 8.2 in., Each
Part Number: AUB-546099
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Differential, Auburn, Grip-N-Loc, Limited Slip, 28-Spline, Buick, Oldsmobile, Pontiac, 8.2 in., Each
Part Number: AUB-546060
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Gear, Ring and Pinion, 4.10:1 Ratio, GM, 7.5 in./7.625 in., 3 Series, Set
Part Number: MGR-G875410
Estimated Ship Date: Today
Estimated Ship Date: Today
Gear, Ring and Pinion, 3.73:1 Ratio, GM, 12-Bolt Car, Set
Part Number: RMG-4900961
Estimated Ship Date: Today
Estimated Ship Date: Today
Gear, Ring and Pinion, 3.55:1 Ratio, GM, 8.2 in., Set
Part Number: MGR-G882355
Estimated Ship Date: Today
Estimated Ship Date: Today
Differential, Lock-Right, Locker, 28-Spline, GM, 7.625 in., Each
Part Number: PWT-1931-LR
Estimated Ship Date: May 6, 2026 if ordered today
Estimated Ship Date: May 6, 2026 if ordered today
Differential, Lock-Right, Locker, 26-Spline, GM, 7.5 in., Each
Part Number: PWT-1930-LR
Estimated Ship Date: Today
Estimated Ship Date: Today
Gear, Ring and Pinion, 4.10:1 Ratio, GM, 7.5 in., Set
Part Number: MGR-GM75-410
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Differential, Lock-Right, Locker, 28-Spline, GM, 8.2 in., Each
Part Number: PWT-1940-LR
Estimated Ship Date: Today
Estimated Ship Date: Today
Gear, Ring and Pinion, 3.73:1 Ratio, GM, 7.5in./7.625 in., 2 Series, Set
Part Number: MGR-G875373X
Estimated Ship Date: Today
Estimated Ship Date: Today
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: Apr 20, 2026 if ordered today
Estimated Ship Date: Apr 20, 2026 if ordered today
Ring and Pinion Gears and Installation Kit, 12P 8.875" GM 3.31 REAR R&P GEAR/ INSTALL KIT PACKAGE with AK 1563 AXLE BRGS (2.25" OD)
Part Number: YGA-12605
Not Yet Reviewed
Estimated Ship Date: Apr 20, 2026 if ordered today
Estimated Ship Date: Apr 20, 2026 if ordered today
Differential, Lock-Right, Locker, 26-Spline, GM, 7.625 in., Each
Part Number: PWT-1932-LR
Estimated Ship Date: May 6, 2026 if ordered today
Estimated Ship Date: May 6, 2026 if ordered today
Gear, Ring and Pinion, 4.11:1 Ratio, GM, 8.2 in., Set
Part Number: MGR-G882411
Not Yet Reviewed
Estimated Ship Date: Apr 7, 2026 if ordered today
Estimated Ship Date: Apr 7, 2026 if ordered today
Need It Sooner? We recommend these similar substitute parts:
Richmond Gear Pro Gear Ring and Pinion Sets 79-0099-1 GM 8.875 in. (12-bolt) passenger car 4.11 Gears
Estimated Ship Date: Today
Gear, Ring and Pinion, 3.55:1 Ratio, GM, 8.2 in., Buick, Pontiac, Set.
Part Number: MGR-BP882355
Estimated Ship Date: Today
Estimated Ship Date: Today
Differential, Grip Pro Traction System, 30-Spline, GM 8.875 in., 12-Bolt Car, Each
Part Number: PWT-GT231230
Not Yet Reviewed
Estimated Ship Date: May 7, 2026 if ordered today
Estimated Ship Date: May 7, 2026 if ordered today
Need It Sooner? We recommend these similar substitute parts:
Auburn Gear Grip-N-Loc 30 Spline Differential GM 8.875 Inch (12-bolt) 546033
Not Yet Reviewed
Estimated Ship Date: Today
Gear, Ring and Pinion, 3.08:1 Ratio, GM, 8.5 in/8.6 in., Set
Part Number: MGR-GM10-308
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Differential, No-Slip Traction System, 28-Spline, Buick, Oldsmobile, Pontiac, 8.2 in., Each
Part Number: PWT-92-0782-2801
Estimated Ship Date: Today
Estimated Ship Date: Today
Differential Carrier, Positraction, Nodular Iron, GM 8.2 in. BOP, 28 spline, 3.31 Up Ratio, Each
Part Number: SUM-730964
Estimated Ship Date: Today
Estimated Ship Date: Today
Differential Carrier Case, Open, 28-spline, Rear, GM 7.5 in., GM 7.625 in., 3.23 Ratio and Up, Chevy, Each
Part Number: YGA-20102
Not Yet Reviewed
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
Truck / SUV
Jeep®
Restoration
Stock Replacement
Late Model Muscle
Tools
Gifts, Clothing, & More
Circle Track
Street Rod
Powersports
Paint & Body
Marine
Jr Dragster