PONTIAC FIREBIRD Differential & Rear-End Components

Ring and Pinion Installation Kit, GM 7.5/7.625 in., Rear, Kit

Part Number: MGR-R75GRMK

5.0 out of 5 stars ( 3 )

Estimated Ship Date: Monday 7/28/2025

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Axles, Direct Fit, C-Clip, Rear, 1541H Steel, 28-Spline, Chevy, 8.5 in.,Pair

Part Number: MSR-A102803

4.77 out of 5 stars ( 22 )

Estimated Ship Date: Monday 7/28/2025

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Ring and Pinion Gears, 3.42:1 Ratio, 30-spline, Standard Rotation, GM 8.5 in., GM 8.6 in., Set

Part Number: MGR-GM10-342A

4.5 out of 5 stars ( 16 )

Estimated Ship Date: Monday 7/28/2025

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Gear, Ring and Pinion, 4.11:1 Ratio, GM, 12-Bolt Car, 4 Series, Set

Part Number: RMG-79-0099-1

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Monday 7/28/2025

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Differential Carrier, Positraction, Nodular Iron, GM 8.875 in., 30 Spline, 3.08 to 3.90 Ratio, Each

Part Number: SUM-730946

5.0 out of 5 stars ( 5 )

Estimated Ship Date: Monday 7/28/2025

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Gear, Ring and Pinion, 3.08:1 Ratio, GM, 12-Bolt Car, 3 Series, Set

Part Number: RMG-4900941

4.36 out of 5 stars ( 11 )

Estimated Ship Date: Monday 7/28/2025

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Gear, Ring and Pinion, 3.73:1 Ratio, GM, 12-Bolt Car, Set

Part Number: RMG-4900961

4.8 out of 5 stars ( 5 )

Estimated Ship Date: Monday 7/28/2025

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Differential, Lock-Right, Locker, 30-Spline, GM, 12-Bolt, Car/Truck, Each

Part Number: PWT-1910-LR

4.07 out of 5 stars ( 15 )

Estimated Ship Date: Monday 7/28/2025

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Gear, Ring and Pinion, 4.56:1 Ratio, GM, 12-Bolt Car, 4 Series, Set

Part Number: RMG-79-0072-1

4.5 out of 5 stars ( 4 )

Estimated Ship Date: Monday 7/28/2025

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Gear, Ring and Pinion, 3.55:1 Ratio, GM, 8.2 in., 10-Bolt, 3 Series, Set

Part Number: RMG-4900151

4.71 out of 5 stars ( 14 )

Estimated Ship Date: Monday 7/28/2025

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Ring and Pinion Installation Kit, Bearings and Shims, 8.2 in. GM, 10-Bolt, Kit

Part Number: RMG-8310221

4.43 out of 5 stars ( 14 )

Estimated Ship Date: Monday 7/28/2025

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Clutch Kit, Street-Strip Performance, 1-1/8 in. Shaft, 10-Spline, 11 in. Organic/Ceramic Disc, GM, Kit

Part Number: SUM-700932

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Monday 7/28/2025

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Ring and Pinion Installation Kit, Rear, GM 8.5 in., 10-Bolt, GM, Kit

Part Number: ETN-K-GM8-5SR

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 7/28/2025

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Gear, Ring and Pinion, 3.42:1 Ratio, GM, 8.5/8.6 in., 10-Bolt, 3 Series, Set

Part Number: RMG-4902781

5.0 out of 5 stars ( 9 )

Estimated Ship Date: Monday 7/28/2025

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Differential Carrier, Positraction, Nodular Iron, GM 8.2 in., 28 Spline, 3.08 Up Ratio, Each

Part Number: SUM-730962

4.57 out of 5 stars ( 7 )

Estimated Ship Date: Monday 7/28/2025

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Axle Shaft, 28-spline, 29.875 in. Length, Rear, GM 8.2 in., BOP Axle, Pontiac, Each

Part Number: SPZ-35060

4.8 out of 5 stars ( 5 )

Estimated Ship Date: Monday 7/28/2025

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Ring and Pinion Gears, GM 7.5/7.625 in., 4.10:1 Ratio, 27-spline, Standard Rotation, Buick, Cadillac, Chevy, GMC, Hummer, Isuzu, Olds, Pontiac, Set

Part Number: MGR-GM7-5-410A

5.0 out of 5 stars ( 3 )

Estimated Ship Date: Monday 7/28/2025

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Differential, Eaton Detroit Truetrac, 33-Spline, GM 8.875 in., Each

Part Number: ETN-914A576

3.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 7/28/2025

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• $75.00 Summit Bucks

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

Part Number: RMG-79-0064-1

4.25 out of 5 stars ( 4 )

Estimated Ship Date: Monday 7/28/2025

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Differential, Eaton Detroit Truetrac, 26-Spline, GM, 7.5 in., 3:08 and Down, Each

Part Number: ETN-911A415

5.0 out of 5 stars ( 4 )

Estimated Ship Date: Monday 7/28/2025

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• $75.00 Summit Bucks

Ring and Pinion Gears, 4.56:1 Ratio, 30-spline, Standard Rotation, GM 8.5 in., GM 8.6 in., Set

Part Number: MGR-GM10-456A

4.46 out of 5 stars ( 13 )

Estimated Ship Date: Monday 7/28/2025

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Differential Carrier, Positraction, Nodular Iron, GM 8.2 in. BOP, 28 spline, 3.31 Up Ratio, Each

Part Number: SUM-730964

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 7/28/2025

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Ring & Pinion Gear, 3.36 Ratio, GM, 8.2 in. BOP, Set

Part Number: YGA-24503

4.57 out of 5 stars ( 7 )

Estimated Ship Date: Monday 7/28/2025

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Gear, Ring and Pinion, 3.73:1 Ratio, GM, 8.2 in., Buick, Pontiac, Set

Part Number: MGR-BP882373

3.67 out of 5 stars ( 3 )

Estimated Ship Date: Monday 7/28/2025

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Axle C-Clip, Steel, Natural, Each

Part Number: YGA-33083

4.89 out of 5 stars ( 37 )

Estimated Ship Date: Monday 7/28/2025