1970 PONTIAC FIREBIRD Differential & Rear-End Components

Spool, Mini, Steel, 30-Spline, 12-Bolt, GM 8.875 in., Each

Part Number: MGR-MS12C

3.38 out of 5 stars ( 8 )

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Differential Ring and Pinion; GM 8.5 10 Bolt - 3.73 Ratio

Part Number: SVL-2023695

2.0 out of 5 stars ( 1 )

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Differential Carrier, Dura Grip Positraction, Clutch-type, 30-spline, Rear, GM 8.875 in. (12-bolt) Passenger Car, Each

Part Number: YGA-26013

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Gear, Ring and Pinion, 3.36:1 Ratio, GM, 8.2 in., Set

Part Number: MGR-G882336

5.0 out of 5 stars ( 5 )

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Differential Shims, Pinion Shim Type, Steel, Set

Part Number: MGR-1100

3.86 out of 5 stars ( 7 )

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Crate Axle, 70-81 GM Camaro/F-Body Centurion 9-Inch, Black PC, 31-Spline, 4.11 Ratio, Helical Limited Slip, Wilwood 11" Dynapro Black Calipers

Part Number: CUR-CR-GF341TWAB

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Ring and Pinion Installation Kit, GM 8.2 in. BOP Axle, Rear, Kit

Part Number: SPZ-37054

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Estimated Ship Date: Dec 29, 2025 if ordered today

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Ring and Pinion Installation Kit, Master Kit, Buick, 8.2 in., Kit

Part Number: MGR-R8-5PRMK

3.67 out of 5 stars ( 3 )

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Differential Pinion Bearing Kit, GM 8.875 in. Car, Timken Bearings, Chevy, GMC, Kit

Part Number: MGR-R12CRTPK

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Pinion Nut, Steel, Each

Part Number: YGA-33152

5.0 out of 5 stars ( 2 )

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USA Standard Ring & Pinion gear set for GM 12 bolt car in a 3.90 ratio

Part Number: SPZ-36169

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Estimated Ship Date: Dec 29, 2025 if ordered today

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

Part Number: YGA-33401

5.0 out of 5 stars ( 1 )

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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 )

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Gear, Ring and Pinion, 3.42:1 Ratio, 1.625 in. Pinion, 30 Spline, 8.875 in. Ring Gear, GM 8.875 in., Set

Part Number: YGA-24121

1.0 out of 5 stars ( 1 )

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Differential Clutch, Steel Pack, Rear, Posi, GM, 8.875 in., Set

Part Number: YGA-16041

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Estimated Ship Date: Jan 8, 2026 if ordered today

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Differential Carrier Bearing, Races Included, Koyo Bearing, Steel, Set

Part Number: MGR-706016XR

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

Part Number: MGR-FS10-28

4.67 out of 5 stars ( 3 )

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

Part Number: RMG-4900821

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Pinion Bearing, Rear, 1.875 in. i.d., Buick, Cadillac, Chevy, Chrysler, Dodge, Plymouth, Mitsubishi, Each

Part Number: TMK-M804049

5.0 out of 5 stars ( 1 )

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Ring and Pinion Installation Kit, Super Kit, GM, 8.875 in., Kit

Part Number: MGR-R12CRSKT

4.5 out of 5 stars ( 14 )

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Axle Assembly, 9 in, Alloy Steel, 1541H Alloy Steel Axles, 31 Spline, Chevy, Pontiac, Each

Part Number: CUR-CE-GMF7081X

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Estimated Ship Date: Dec 30, 2025 if ordered today

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Thrust Washer, Positraction Differential, GM 8.875 in. Passenger Car, Truck, Each

Part Number: YGA-33382

3.33 out of 5 stars ( 3 )

Estimated Ship Date: Today

Gear, Ring and Pinion, 4.56:1 Ratio, GM, 12-Bolt Car, 3 Series, Set

Part Number: RMG-6903061

4.5 out of 5 stars ( 4 )

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Pinion Nut, Steel, Each

Part Number: MGR-1260823

4.0 out of 5 stars ( 5 )

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Ring and Pinion Gears and Installation Kit, 8.2" BOP 3.73 RATIO REAR R&P GEAR/ INSTALL KIT PACKAGE

Part Number: YGA-12587

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Estimated Ship Date: Jan 8, 2026 if ordered today

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