PONTIAC FIREBIRD Differential & Rear-End Components

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 )

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Pinion Nut Washer, GM, Each

Part Number: YGA-33167

5.0 out of 5 stars ( 2 )

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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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Mini Spool, MINI SPOOL GM 10 BOLT 8.2"

Part Number: RMG-XL-5135

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Estimated Ship Date: Mar 16, 2026 if ordered today

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Spider Gears, Side Gears, Cross Shaft Pin, Yukon Dura Grip Carrier Style, Rear, GM 8.875 in., 30 Spline, Kit

Part Number: YGA-16039

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Estimated Ship Date: Mar 25, 2026 if ordered today

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Differential Cover, 10-bolt, Steel, Chrome, GM 7.5 in., GM 7.625 in., Each

Part Number: YGA-32014

5.0 out of 5 stars ( 1 )

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Differential, Lock-Right, Locker, 26-Spline, GM, 7.5 in., Each

Part Number: PWT-1930-LR

4.75 out of 5 stars ( 8 )

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Ring and Pinion Gears, GM 8.5/8.6 in., 4.88:1 Ratio, 30-spline, Standard, Must Use 2.73:1 or Numerically Higher Ratio Carrier, GM 8.5/8.6 in., Set

Part Number: SVL-2023704

5.0 out of 5 stars ( 1 )

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Crush Sleeve, Steel, GM 8.2 in., GM 8.2 in., BOP Axle, Each

Part Number: YGA-33103

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Axle Shaft, Rear, C-clip Type, 28-spline Inner, Steel, 30.000 in. Length, GM 8.5 in., Chevy, Pontiac, Each

Part Number: RNB-630-141

1.0 out of 5 stars ( 1 )

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Ring and Pinion Install Kit

Part Number: RMG-83-1083-1

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Estimated Ship Date: Mar 16, 2026 if ordered today

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Replcement Springs, Powertrax No-Slip, Kit

Part Number: PWT-8001001KAV

4.93 out of 5 stars ( 15 )

Estimated Ship Date: Today

Spider Gears, Open, Front or Rear, Internal Kit, Side Gears, Cross Pin and Bolt, GM, 8.5 in., 28 Spline, Kit

Part Number: YGA-16054

4.0 out of 5 stars ( 4 )

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Gear, Ring and Pinion, EXCel, 4.10:1 Ratio, GM, 8.875 in., 12-Bolt Car, Set

Part Number: RMG-12BC410T

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Estimated Ship Date: Mar 13, 2026 if ordered today

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

Part Number: ART-11179682

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Estimated Ship Date: Mar 13, 2026 if ordered today

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Differential Crush Sleeve; Fits GM 8.5 in.

Part Number: RMG-19-0004-1

5.0 out of 5 stars ( 1 )

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Pinion Spacer and Shims, Steel, GM, 8.875 in., Passenger Car, Kit

Part Number: RMG-040012S

4.67 out of 5 stars ( 3 )

Estimated Ship Date: Today

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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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: Today

Cross Shaft, Differential, Steel, GM, 10-Bolt, 7.5 in., with Mini Spool, Each

Part Number: RMG-CSPGM75

4.0 out of 5 stars ( 4 )

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Mini Spool, Steel, 28-Spline, GM, 8.2 in., 10-Bolt, Each

Part Number: MGR-MS10C-28

2.67 out of 5 stars ( 6 )

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Gear, Ring and Pinion, 3.90:1 Ratio, GM 8.875 in. (12-Bolt), Set

Part Number: RNB-697-139

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Estimated Ship Date: Mar 16, 2026 if ordered today

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Differential Carrier, Open, GM 7.625 in., 3.23 and higher ratio, Each

Part Number: MGR-GM7-6E

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Differential Carrier Rebuild Kits and Spider Gears, GM 8.5 in., Side Gears, Rear, Open, 28-spline, 10-bolt, GM 8.5 in., Kit

Part Number: SVL-10020477

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Estimated Ship Date: Mar 9, 2026 if ordered today

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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: Today

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