PONTIAC FIREBIRD Differential & Rear-End Components

Axle Shaft, Rear, C-Clip, 1541H Alloy, 33 Spline, 30.125 in. Length, GM 8.875 in., Chevy, Each

Part Number: YGA-21287

4.0 out of 5 stars ( 3 )

Estimated Ship Date: Monday 3/30/2026 if shipped by air

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Gear, Ring and Pinion, 3.90:1 Ratio, GM, 8.5/8.6 in., 10-Bolt, 3 Series, Set

Part Number: RMG-4900341

4.67 out of 5 stars ( 9 )

Estimated Ship Date: Monday 3/30/2026 if shipped by air

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Differential Shims, Carrier, Steel, Kit

Part Number: MGR-SS10

4.89 out of 5 stars ( 9 )

Estimated Ship Date: Monday 3/30/2026 if shipped by air

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 3/30/2026 if shipped by air

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Differential Carrier Cases, GM 8.5 in., 28/30 Spline, 2.73 and Up Ratio, Each

Part Number: YGA-20083

4.6 out of 5 stars ( 5 )

Estimated Ship Date: Monday 3/30/2026 if shipped by air

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Differential Cover, Aluminum, Polished, GM, 12-Bolt 8.875 in., Passenger, Kit

Part Number: SUM-730513

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Estimated Ship Date: Monday 3/30/2026 if shipped by air

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Bearing, Differential Carrier, Kit

Part Number: TMK-SET47

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Monday 3/30/2026 if shipped by air

Ring and Pinion Installation Kit, Master Kit, GM, 8.5 in., Kit

Part Number: MGR-R10REMK

4.0 out of 5 stars ( 2 )

Estimated Ship Date: Monday 3/30/2026 if shipped by air

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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 )

Estimated Ship Date: Monday 3/30/2026 if shipped by air

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Ring and Pinion Installation Kit, 12-bolt, 30-spline, Rear, GM 8.875 in. Passenger Car, Kit

Part Number: MGR-R12CRMK

3.33 out of 5 stars ( 3 )

Estimated Ship Date: Monday 3/30/2026 if shipped by air

USA Standard Master Overhaul kit for the GM 12P differential

Part Number: SPZ-37042

Not Yet Reviewed

Estimated Ship Date: Monday 3/30/2026 if shipped by air

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Differential Cover, Aluminum Girdle Cover, Natural, 10-bolt, GM 8.2 in., BOP Axle, Each

Part Number: YGA-32120

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Estimated Ship Date: Monday 3/30/2026 if shipped by air

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Differential Parts Kit; Open Differential; Includes 28-Spline Side And Pinion Gears/Washers/Pinion Shaft /Bolt

Part Number: MGR-GM10-BI

4.43 out of 5 stars ( 7 )

Estimated Ship Date: Monday 3/30/2026 if shipped by air

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Spool, Mini, Steel, 26-Spline, 10-Bolt, GM 7.5 in., Each

Part Number: RMG-78-7526-1

4.4 out of 5 stars ( 10 )

Estimated Ship Date: Monday 3/30/2026 if shipped by air

Gear, Ring and Pinion, 3.55:1 Ratio, 27 Spline, 8.2 in. BOP Axle, Set

Part Number: YGA-24504

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Estimated Ship Date: Apr 27, 2026 if ordered today

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Gear, Ring and Pinion, 3.73:1 Ratio, GM, 7.5 in., Set

Part Number: MGR-GM75-373

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Estimated Ship Date: Monday 3/30/2026 if shipped by air

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Ring and Pinion Kit

Part Number: RMG-GM75308

Not Yet Reviewed

Estimated Ship Date: Apr 15, 2026 if ordered today

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Differential Cover, 10-bolt, Steel, Natural, GM 8.2 in., GM 8.5 in., GM 8.6 in., Each

Part Number: YGA-32332

4.86 out of 5 stars ( 7 )

Estimated Ship Date: Monday 3/30/2026 if shipped by air

Ring and Pinion Gears,Yukon Gear & Axle 7.5" GM, 3.23 Ratio Rear Ring & Pinion GearInstall Kit 26 Spline and 2.25" OD Axle Bearings & Seals

Part Number: YGA-10640

Not Yet Reviewed

Estimated Ship Date: Apr 28, 2026 if ordered today

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Ring and Pinion Gear Installation Kit, Differential Rebuild Master, GM 7.5/7.6 in., Kit

Part Number: NTN-NBRA320MK

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Monday 3/30/2026 if shipped by air

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Axle Shaft, 30-Spline, 30.063 in. Length, Chevy, Pontiac, 8.875 in., Rear, Each

Part Number: RMG-92-25122

4.89 out of 5 stars ( 9 )

Estimated Ship Date: Monday 3/30/2026 if shipped by air

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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 3/30/2026 if shipped by air

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Ring and Pinion Gears and Installation Kit, 8.5" GM 4.11 REAR R&P GEAR/ INSTALL KIT PACKAGE with 28spl POSI & AK 1563 AXLE BRGS (2.25" OD)

Part Number: YGA-12630

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Estimated Ship Date: Apr 27, 2026 if ordered today

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Gear, Ring and Pinion, 4.33:1 Ratio, GM, 12-Bolt Car, 4 Series, Set

Part Number: RMG-6903781

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Estimated Ship Date: Monday 3/30/2026 if shipped by air

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Gear, Ring and Pinion, 2.73:1 Ratio, GM 7.5/7.625 in., Set

Part Number: RNB-697-713

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Estimated Ship Date: Monday 3/30/2026 if shipped by air