1979 PONTIAC FIREBIRD Differential & Rear-End Components Transmission & Drivetrain - In Stock Filter Options - Vendor In Stock Filter Options

Motive Gear Performance Ring and Pinion Sets G885456 GM 8.5/8.6 in. 4.56 Gears

Gear, Ring and Pinion, 4.56:1 Ratio, GM, 8.5/8.6 in., Set

Part Number: MGR-G885456

5.0 out of 5 stars ( 1 )

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Richmond Gear Ring and Pinion Sets 69-0322-1 GM 7.5/7.625 in. 4.10 Gears

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 )

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USA Standard Gear Ring and Pinion Sets ZG GM8.5-456 GM 8.5/8.6 in. 4.56 Gears

Ring and Pinion Gear, 4.56:1 Ratio, GM, 8.5 in./8.6 in., Rear, Set

Part Number: SPZ-36218

Not Yet Reviewed

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Yukon Gear & Axle Ring and Pinion Sets YG GM8.5-488 GM 8.5/8.6 in. 4.88 Gears

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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Yukon Gear & Axle Ring and Pinion Sets YG GM8.5-323 GM 8.5/8.6 in. 3.23 Gears

Gear, Ring and Pinion, 3.23:1 Ratio, 1.625 in. Pinion, 30 Spline, 8.500 in. Ring Gear, GM 8.5/8.6 in., Set

Part Number: YGA-24493

3.67 out of 5 stars ( 3 )

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Motive Gear Open Differential Internal Kits GM10BI

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 )

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Motive Gear Ring and Pinion Sets GM7.5-410 GM 7.5/7.625 in. 4.10 Gears

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

Part Number: MGR-GM75-410

Not Yet Reviewed

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Motive Gear Performance Ring and Pinion Sets G875373X GM 7.5/7.625 in. 3.73 Gears

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

Part Number: MGR-G875373X

4.8 out of 5 stars ( 5 )

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Motive Gear Ring and Pinion Sets GM10-456 GM 8.5/8.6 in. 4.56 Gears

Gear, Ring and Pinion, 4.56:1 Ratio, GM, 8.5/8.6 in., 10-Bolt, Set

Part Number: MGR-GM10-456

4.5 out of 5 stars ( 4 )

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USA Standard Gear Ring and Pinion Sets ZG GM8.5-411 GM 8.5/8.6 in. 4.11 Gears

Ring and Pinion Gear, 4.11:1 Ratio, GM, 8.5 in./8.6 in., Rear, Set

Part Number: SPZ-36216

Not Yet Reviewed

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Richmond Gear EXCel Ring and Pinion Sets GM75342OE GM 7.5/7.625 in. 3.42 Gears

Gear, Ring and Pinion, EXCel, 3.42:1 Ratio, GM, 7.5/7.625 in., 10-Bolt, Set

Part Number: RMG-GM75342OE

5.0 out of 5 stars ( 7 )

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Yukon Gear & Axle Crush Sleeve Eliminator Kits SK CSGM7.5

Crush Sleeve Eliminator Kit, Steel Spacer, Pinion Shims, GM 7.5 in., GM 7.6 in., GM 8.2 in., Kit

Part Number: YGA-55047

4.29 out of 5 stars ( 7 )

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Richmond Gear Ring and Pinion Sets 69-0169-1 GM 8.5/8.6 in. 4.88 Gears

Gear, Ring and Pinion, 4.88:1 Ratio, GM, 8.5/8.6 in., 10-Bolt, 3 Series, Set

Part Number: RMG-6901691

4.6 out of 5 stars ( 5 )

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Yukon Gear & Axle Mini Spools YP MINSGM8.5-30

Spool, Mini, Steel, 30-spline, 10-bolt, GM 8.5 in., Each

Part Number: YGA-32233

4.67 out of 5 stars ( 12 )

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Richmond Gear EXCel Ring and Pinion Sets GM75373TK GM 7.5/7.625 in. 3.73 Gears

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

Part Number: RMG-GM75373TK

3.0 out of 5 stars ( 2 )

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Motive Gear Ring and Pinion Sets GM10-430 GM 8.5/8.6 in. 4.30 Gears

Gear, Ring and Pinion, 4.30:1 Ratio, GM, 8.5/8.6 in., 10-Bolt, Set

Part Number: MGR-GM10-430

1.0 out of 5 stars ( 1 )

Estimated Ship Date: Mar 13, 2026 if ordered today

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Estimated Ship Date: Mar 13, 2026 if ordered today

Need It Sooner? We recommend these similar substitute parts:

Motive Gear Performance Ring and Pinion Sets G885430 GM 8.5/8.6 in. 4.30 Gears

5 out of 5 stars ( 3 )

Estimated Ship Date: Tomorrow

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Richmond Gear EXCel Ring and Pinion Sets GM75456 GM 7.5/7.625 in. 4.56 Gears

Gear, Ring and Pinion, EXCel, 4.56:1 Ratio, GM, 7.5/7.625 in., 10-Bolt, Set

Part Number: RMG-GM75456

5.0 out of 5 stars ( 2 )

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Motive Gear Master Ring and Pinion Installation Kits R10REMK

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

Part Number: MGR-R10REMK

4.0 out of 5 stars ( 2 )

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Dorman Ring and Pinion Sets 697-713 GM 7.5/7.625 in. 2.73 Gears

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

Part Number: RNB-697-713

Not Yet Reviewed

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Motive Gear Differential Carrier Shim Kits SS10

Differential Shims, Carrier, Steel, Kit

Part Number: MGR-SS10

4.89 out of 5 stars ( 9 )

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Eaton Detroit Lockers GM 8.5 Inch 187C149A

Differential, Eaton Detroit Locker, 28-Spline, GM, 8.5 in., 3-Series, Each

Part Number: ETN-187C149A

Not Yet Reviewed

Estimated Ship Date: Mar 18, 2026 if ordered today

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Estimated Ship Date: Mar 18, 2026 if ordered today

Motive Gear Super Ring and Pinion Gear Installation Kits R7.5GRBSKT

Ring and Pinion Installation Kit, Super Kit, GM, 7.5 in., Kit

Part Number: MGR-R7-5GRBSKT

4.5 out of 5 stars ( 2 )

Estimated Ship Date: Tomorrow

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SVL Drivetrain Ring and Pinion Gear Sets 2023698 GM 8.5/8.6 in. 3.23 Gears

Ring and Pinion Gears, 3.23:1 Ratio, GM 8.5 in., Set

Part Number: SVL-2023698

Not Yet Reviewed

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Motive Gear Performance Ring and Pinion Sets G875410 GM 7.5/7.625 in. 4.10 Gears

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

Part Number: MGR-G875410

5.0 out of 5 stars ( 3 )

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Richmond Gear EXCel Ring and Pinion Sets GM75410OE GM 7.5/7.625 in. 4.10 Gears

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

Part Number: RMG-GM75410OE

1.0 out of 5 stars ( 1 )

Estimated Ship Date: Tomorrow

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