PONTIAC FIREBIRD Differential & Rear-End Components

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

Part Number: RMG-78-1230-1

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Estimated Ship Date: Apr 16, 2026 if ordered today

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Ring and Pinion Gears, 3.23:1 Ratio, 27-spline, Standard Rotation, GM 7.5 in., GM 7.6 in., Set

Part Number: YGA-24477

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Apr 24, 2026 if ordered today

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Differential Internals, Yukon Dura Grip or Eaton Positraction Internals for 8.5" GM with 28 Spline Axles, Kit

Part Number: YGA-16052

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Estimated Ship Date: Apr 24, 2026 if ordered today

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Ring and Pinion Kit

Part Number: RMG-XL-1019-1

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Estimated Ship Date: Apr 15, 2026 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-36195

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Estimated Ship Date: Apr 13, 2026 if ordered today

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Pinion Crush Sleeves, Steel, GM, 8.5 in., 8.6 in., 8.75 in., Pair

Part Number: RNB-81057

3.67 out of 5 stars ( 3 )

Estimated Ship Date: Tomorrow

Axle Shaft, Rear, 1541H Alloy, 28 Spline, 32.00 in. Length, GM 7.625 in., Chevy, Pontiac, Each

Part Number: YGA-21624

5.0 out of 5 stars ( 5 )

Estimated Ship Date: Apr 28, 2026 if ordered today

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Differential Cross Shaft Bolt, Hex Head, GM 7.5, GM 7.625, 10-Bolt, Each

Part Number: MGR-14056196

4.67 out of 5 stars ( 3 )

Estimated Ship Date: Tomorrow

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: Tomorrow

Differential Carrier, Spartan Locker, Steel, 30-spline, Rear, GM 8.5 in., Each

Part Number: SPZ-17041

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Estimated Ship Date: Apr 13, 2026 if ordered today

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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: Tomorrow

Differential, No-Slip Traction System, 28-Spline, GM, 8.5 in., Each

Part Number: PWT-9207852805

4.5 out of 5 stars ( 4 )

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Gear, Ring and Pinion, 4.10:1 Ratio, GM, 7.5 in./7.625 in., 10-Bolt, 2 Series, Set

Part Number: RMG-49-0009-1

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Estimated Ship Date: Apr 15, 2026 if ordered today

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Gear, Ring and Pinion, 2.73:1 Ratio, GM, 8.5/8.6 in., Set

Part Number: MGR-G885273

5.0 out of 5 stars ( 1 )

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Axle Shaft, OEM Replacement, C-clip, 1541H Alloy Steel, 28-spline Inner, 32.000 in. Length, Each

Part Number: MGR-MG1021

5.0 out of 5 stars ( 1 )

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Axle Shaft, Rear, C-clip, 28-spline Inner, 1541H Alloy Steel, GM 7.625 in., Chevy, Pontiac, Each

Part Number: YGA-21623

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Estimated Ship Date: Apr 27, 2026 if ordered today

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

Part Number: MGR-GM75-410

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Ring and Pinion Gears,USA Standard 7.5"/7.625" GM, 3.73 Ratio Rear Ring & Pinion GearInstall Kit 2.25" OD Axle Bearings & Seals

Part Number: SPZ-10693

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Estimated Ship Date: Apr 13, 2026 if ordered today

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Gear, Ring and Pinion, 5.57:1 Ratio, GM, 8.5/8.6 in., 10-Bolt, 3 Series, Set

Part Number: RMG-6901751

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Tomorrow

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Ring and Pinion Gear, 4.30:1 Ratio, GM, 8.5 in./8.6 in., Rear, Set

Part Number: SPZ-36217

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Estimated Ship Date: Apr 9, 2026 if ordered today

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Mini Spool, MINI SPOOL GM 7 1/2" 28 SPL

Part Number: RMG-XL-5131

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Estimated Ship Date: Apr 15, 2026 if ordered today

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Thrust Washer, Differential Carrier Replacement Part, GM 8.875 in. (12-bolt), Each

Part Number: YGA-33381

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Estimated Ship Date: Tomorrow

REAR AXLE ASM, 9" STANDARD, 67-69 GM F-BODY, 68-72 GM X-BODY

Part Number: QA1-R901S

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Estimated Ship Date: Apr 16, 2026 if ordered today

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Axle Assembly, Narrowed, Ford 9 in., Black, 1541H Steel, 31 Spline Axles, F-Body, Second Gen, for use with QA1 4-Link, Chevy, Pontiac, Kit

Part Number: QA1-R902N

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Estimated Ship Date: Apr 14, 2026 if ordered today

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Differential Ring and Pinion, USA Standard Ring & Pinion set for 8.2" Buick, Olds & Pontiac, 3.55

Part Number: SPZ-36368

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Estimated Ship Date: Apr 13, 2026 if ordered today

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