1977 PONTIAC FIREBIRD Differential & Rear-End Components

Differential Shims, Pinion, Steel, Kit

Part Number: MGR-1104

3.83 out of 5 stars ( 6 )

Estimated Ship Date: Monday 8/25/2025

Cross Pin, GM, 10-Bolt, 8.5 in. Each

Part Number: MGR-14006401

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Estimated Ship Date: Monday 8/25/2025

Gear, Ring and Pinion, 4.10:1 Ratio, GM, 7.5 in./7.625 in., 10-Bolt, 3 Series, Set

Part Number: RMG-6903221

4.0 out of 5 stars ( 7 )

Estimated Ship Date: Monday 8/25/2025

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Differential Cross Shaft, Steel, 0.795 in. Diameter, Each

Part Number: YGA-33401

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 8/25/2025

Gear, Ring and Pinion, 4.10:1 Ratio, GM, 7.5 in., Set

Part Number: MGR-GM75-410

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Estimated Ship Date: Monday 8/25/2025

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Performance Mini Spool (GM 8.5 - 30 Spline)

Part Number: SDH-10015388

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Estimated Ship Date: Monday 8/25/2025

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Pinion Nut, Steel, Each

Part Number: MGR-1260823

4.0 out of 5 stars ( 5 )

Estimated Ship Date: Monday 8/25/2025

Axle Assemblies, Ford 9 in., Natural, 56 in. Flange to Flange, 31-Spline Axles, 1541H Alloy, Chevy, Pontiac, Kit

Part Number: ART-11179681

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Estimated Ship Date: Sep 10, 2025 if ordered today

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Axle Assemblies, Ford 9 in., Natural, 61.25 in. Flange to Flange, 31-Spline Axles, 1541H Alloy, Chevy, Pontiac, Kit

Part Number: ART-11179680

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Estimated Ship Date: Sep 10, 2025 if ordered today

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Mini Spool, Steel, 28-spline, 10-bolt, GM 8.5 in., Each

Part Number: YGA-32232

4.0 out of 5 stars ( 1 )

Estimated Ship Date: Sep 23, 2025 if ordered today

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Ring and Pinion Gears, 3.42:1 Ratio, 27-spline, Standard Ring Gear Rotation, GM 7.5 in., GM 7.625 in., Set

Part Number: SPZ-36196

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Estimated Ship Date: Sep 10, 2025 if ordered today

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Gear, Ring and Pinion, 4.88:1 Ratio, 1.625 in. Pinion, 30 Spline, 8.500 in. Ring Gear, GM 8.5/8.6 in., Set

Part Number: YGA-24162

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Estimated Ship Date: Monday 8/25/2025

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Differential Shaft Lock Bolt, Steel, Cadillac, Chevy, GMC, Ford, Mercury, Each

Part Number: RNB-81048

5.0 out of 5 stars ( 6 )

Estimated Ship Date: Monday 8/25/2025

Bearing, Pinion, 1.312 in. Inside Diameter, Each

Part Number: NTL-M88048

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Estimated Ship Date: Monday 8/25/2025

Spool, Mini, Steel, 28-Spline, 10-Bolt, GM 8.5 in., Each

Part Number: RMG-78-1028-1

4.33 out of 5 stars ( 6 )

Estimated Ship Date: Sep 12, 2025 if ordered today

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Carrier Shims, Ford 8.8 in., GM 12-Bolt Truck, GM 9.3 in. C-Axle, Kit

Part Number: RMG-3800071

4.13 out of 5 stars ( 8 )

Estimated Ship Date: Monday 8/25/2025

Gear, Ring and Pinion, 3.08:1 Ratio, GM, 8.5/8.6 in., Set

Part Number: MGR-G885308

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Sep 15, 2025 if ordered today

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Differential Clutch, Steel Pack, Dura-Grip, Eaton, 18-Plate, GM, 8.875 in., Set

Part Number: YGA-16110

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Sep 24, 2025 if ordered today

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Gear, Ring and Pinion, 3.42:1 Ratio, 1.438 in. Pinion, 27 Spline, 7.500 in. Ring Gear, GM 7.5/7.6 in., Set

Part Number: YGA-24145

4.33 out of 5 stars ( 3 )

Estimated Ship Date: Monday 8/25/2025

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Ring and Pinion Gears, 3.23:1 Ratio, 30-spline, Standard Ring Gear Rotation, GM 8.5/8.6 in., Set

Part Number: SPZ-36212

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Estimated Ship Date: Sep 10, 2025 if ordered today

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Gear, Ring and Pinion, 3.73:1 Ratio, GM, 7.5 in./7.625 in., 10-Bolt, 2 Series, Set

Part Number: RMG-4900071

3.0 out of 5 stars ( 2 )

Estimated Ship Date: Monday 8/25/2025

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Carrier Shims, Super, Steel, Set of 18

Part Number: YGA-16042

3.11 out of 5 stars ( 9 )

Estimated Ship Date: Monday 8/25/2025

Differential Carrier Bearings, Standard Replacement, Includes Cup, 1.625 in. Bore, AMC, GM, Mopar, Jeep, International, Studebaker, Hummer, Each

Part Number: TMK-SET69

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 8/25/2025

Gear, Ring and Pinion, 3.08:1 Ratio, GM, 7.5 in./7.625 in., 2 Series, Set

Part Number: MGR-G875308

4.0 out of 5 stars ( 4 )

Estimated Ship Date: Monday 8/25/2025

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Differential Crush Sleeves, Steel, Fits with Aftermarket Ring and Pinion Set Only, Buick, Chevrolet, GMC, Hummer, Isuzu, Oldsmobile, Pontiac, Each

Part Number: MGR-9785792

4.5 out of 5 stars ( 2 )

Estimated Ship Date: Monday 8/25/2025