PONTIAC FIREBIRD Differential & Rear-End Components

Gear, Ring and Pinion, 3.23:1 Ratio, GM, 7.5 in./7.625 in., 3 Series, Set

Part Number: MGR-G875323

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 1/19/2026

• Free Shipping

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: Monday 1/19/2026

• Free Shipping

Differential Carrier Bearings, Steel, GM 8.5 in., Kit

Part Number: YGA-57009

4.0 out of 5 stars ( 5 )

Estimated Ship Date: Monday 1/19/2026

• Free Shipping

Gear, Ring and Pinion, 4.88:1 Ratio, GM, 12-Bolt Car, 4 Series, Set

Part Number: RMG-6900331

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Monday 1/19/2026

• Free Shipping

Gear, Ring and Pinion, 3.08:1 Ratio, GM, 8.875 in., 12-Bolt, Set

Part Number: MGR-GM12-308

3.0 out of 5 stars ( 2 )

Estimated Ship Date: Monday 1/19/2026

• Free Shipping

Differential Cover, 10-bolt, Steel, Chrome, GM 8.2 in., BOP Axle, Each

Part Number: YGA-32015

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 1/19/2026

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

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 1/19/2026

• Free Shipping

Gear, Ring and Pinion, EXCel, 4.56:1 Ratio, GM, 8.5/8.6 in., 10-Bolt, Set

Part Number: RMG-GM85456

3.67 out of 5 stars ( 3 )

Estimated Ship Date: Monday 1/19/2026

• Free Shipping

Differential Shims, Carrier, Steel, Kit

Part Number: MGR-SS10

4.89 out of 5 stars ( 9 )

Estimated Ship Date: Monday 1/19/2026

Differential Carrier Replacement Parts, Service Kit, Stator/Amature, Dana 44, 4 Pinion, Kit

Part Number: ETN-26982-00S

5.0 out of 5 stars ( 3 )

Estimated Ship Date: Monday 1/19/2026

• Free Shipping

Gear, Ring and Pinion, 3.42:1 Ratio, GM, 7.5 in./7.625 in., 10-Bolt, 2 Series, Set

Part Number: RMG-4900051

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 1/19/2026

• Free Shipping

Bearing, Differential Carrier, Kit

Part Number: TMK-SET47

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Monday 1/19/2026

Pinion Shims, Steel, Kit

Part Number: YGA-55009

5.0 out of 5 stars ( 5 )

Estimated Ship Date: Monday 1/19/2026

USA Standard Master Overhaul kit GM 8.5 in., Rear, Kit

Part Number: SPZ-37057

4.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 1/19/2026

• Free Shipping

Crosspin Bolt, 5/16 in. Hex Head, Each

Part Number: YGA-33067

5.0 out of 5 stars ( 4 )

Estimated Ship Date: Monday 1/19/2026

Ring and Pinion Installation Kit, GM, 12-Bolt Car, Kit

Part Number: MGR-R12CR

3.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 1/19/2026

Axle Shafts, Direct Fit, Rear, 1541H Manganese, Chevy, GMC, Pontiac, 28-Spline, 30.12 Length, Kit

Part Number: MGR-MG22101

4.9 out of 5 stars ( 21 )

Estimated Ship Date: Monday 1/19/2026

• Free Shipping

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: Feb 17, 2026 if ordered today

• Drop Ship
• Free Shipping
• Special Order

Ring & Pinion Gear, 3.73 Ratio, GM, 8.875 in. Passenger Car, Set

Part Number: YGA-24124

4.0 out of 5 stars ( 2 )

Estimated Ship Date: Monday 1/19/2026

• Free Shipping

Gear, Ring and Pinion, 5.13:1 Ratio, GM, 8.5/8.6 in., 10-Bolt, 3 Series, Set

Part Number: RMG-6901711

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 1/19/2026

• Free Shipping

Pinion Nut, Steel, GM, 8.875 in., Corvette, Each

Part Number: MGR-3752901

5.0 out of 5 stars ( 4 )

Estimated Ship Date: Monday 1/19/2026

Ring and Pinion Gears, 4.11:1 Ratio, Standard Rotation, 8.20 in. Diameter, GM, BOP, Set

Part Number: MGR-BP882411

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 1/19/2026

• Free Shipping

Ring and Pinion Installation Kit, Master Kit, GM, 7.5 in., 7.625 in., Kit

Part Number: MGR-R7-5GRLMK

3.5 out of 5 stars ( 2 )

Estimated Ship Date: Monday 1/19/2026

Performance Mini Spool (GM 8.5 - 30 Spline)

Part Number: SDH-10015388

Not Yet Reviewed

Estimated Ship Date: Monday 1/19/2026

• Free Shipping

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: Monday 1/19/2026

• Free Shipping