Availability
PONTIAC FIREBIRD Differential & Rear-End Components
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 Cover, Steel, Chrome, GM, 8.5 in., 10-Bolt, Kit
Part Number: MRG-9891
Estimated Ship Date: Today
Estimated Ship Date: Today
This product may not be eligible for select promotional offers
Mini spool for GM 12 bolt with 30 spline axles
Part Number: YGA-32227
Estimated Ship Date: Today
Estimated Ship Date: Today
Estimated Ship Date: Today
Ring and Pinion Gears, 3.73:1 Ratio, 30-spline, Standard Ring Gear Rotation, GM 8.875 in. Passenger Car, Set
Part Number: SPZ-36167
Not Yet Reviewed
Estimated Ship Date: Feb 23, 2026 if ordered today
Estimated Ship Date: Feb 23, 2026 if ordered today
Spool, Mini, Steel, 26-Spline, 10-Bolt, GM 7.5 in., Each
Part Number: RMG-78-7526-1
Estimated Ship Date: Today
Estimated Ship Date: Today
Axle Shaft, Rear, C-clip Type, 28-spline Inner, 32.00 in. Length, Bearing, Seal, Chevy, Pontiac, Kit
Part Number: RNB-630-150
Estimated Ship Date: Today
Estimated Ship Date: Today
Ring and Pinion Installation Kit, Master Kit, GM, 7.5 in., 7.625 in., Kit
Part Number: MGR-R7-5GRLMK
Estimated Ship Date: Today
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 Installation Kit, Master Kit, GM, 8.5 in., Kit
Part Number: MGR-R10REMK
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
Differential Cover, 10-bolt, Steel, Chrome, GM 8.2 in., BOP Axle, Each
Part Number: YGA-32015
Estimated Ship Date: Today
Estimated Ship Date: Today
Ring and Pinion Installation Kit, 12-bolt, 30-spline, Rear, GM 8.875 in. Passenger Car, Kit
Part Number: MGR-R12CRMK
Estimated Ship Date: Today
Estimated Ship Date: Today
Gear, Ring and Pinion, 3.08:1 Ratio, GM, 7.5 in./7.625 in., 2 Series, Set
Part Number: MGR-G875308
Estimated Ship Date: Today
Estimated Ship Date: Today
Differential Ring and Pinion; GM 8.5 10 Bolt - 3.73 Ratio
Part Number: SVL-2023695
Estimated Ship Date: Today
Estimated Ship Date: Today
Pinion Bearing, 1.437 in. i.d., BMW, Buick, Cadillac, Chevy, GMC, Chrysler, Dodge, Mercedes-Benz, Volvo, Each
Part Number: TMK-HM89449
Estimated Ship Date: Today
Estimated Ship Date: Today
Gear, Ring and Pinion, EXCel, 3.08:1 Ratio, GM, 8.5/8.6 in., 10-Bolt, Set
Part Number: RMG-GM85308
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Ring and Pinion Installation Kit, Super Kit, GM, 7.5 in., Kit
Part Number: MGR-R7-5GRBSKT
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: Today
Estimated Ship Date: Today
Mini Spool, GM 7.5 in. 10-Bolt, Open Carrier, Equal Windows, 28-Spline, Each
Part Number: RMG-78-7528-1
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Gear, Ring and Pinion, EXCel, 4.10:1 Ratio, GM, 7.5/7.625 in., 10-Bolt, Set
Part Number: RMG-GM75410OE
Estimated Ship Date: Today
Estimated Ship Date: Today
Differential Carrier, Positraction, Nodular Iron, GM 8.5 in., 28 Spline, 2.73 Up Ratio, Each
Part Number: SUM-730966
Estimated Ship Date: Today
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: Mar 31, 2026 if ordered today
Estimated Ship Date: Mar 31, 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
Truck / SUV
Jeep®
Restoration
Stock Replacement
Late Model Muscle
Tools
Gifts, Clothing, & More
Circle Track
Street Rod
Powersports
Paint & Body
Marine
Jr Dragster