BUICK Differential & Rear-End Components Transmission & Drivetrain - Free Shipping on Orders Over $109 at Summit Racing

Richmond Gear Mini-Spools 78-1028-1

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: Monday 12/22/2025

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Estimated Ship Date: Monday 12/22/2025

Motive Gear Master Ring and Pinion Installation Kits R7.5GRMKT

Ring and Pinion Installation Kit, Master Kit, GM 7.5 in., 7.625 in., Kit

Part Number: MGR-R75GRMKT

4.0 out of 5 stars ( 2 )

Estimated Ship Date: Monday 12/22/2025

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Estimated Ship Date: Monday 12/22/2025

Moser Engineering Replacement C-Clip Axles A102801-1

Axles, Direct Fit, C-Clip, Rear, 1541H Steel, 28-Spline, GM G-Body, 7.5 in., Each

Part Number: MSR-A102801-1

Not Yet Reviewed

Estimated Ship Date: Monday 12/22/2025

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Estimated Ship Date: Monday 12/22/2025

USA Standard Gear Ring and Pinion Gear Kit Packages ZGK2236 GM 7.5/7.625 in. 3.23 Gears

Ring and Pinion Gears,USA Standard 7.5"/7.625" GM, 3.23 Ratio Rear Ring & Pinion GearInstall Kit 2.25" OD Axle Bearings & Seals

Part Number: SPZ-10691

Not Yet Reviewed

Estimated Ship Date: Jan 5, 2026 if ordered today

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Estimated Ship Date: Jan 5, 2026 if ordered today

Motive Gear Differential Bearing Kits R8.2RIFSL

Ring and Pinion Installation Kit, GM, 8.25 in. IFS, Kit

Part Number: MGR-R82RIFSL

Not Yet Reviewed

Estimated Ship Date: Jan 7, 2026 if ordered today

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Estimated Ship Date: Jan 7, 2026 if ordered today

USA Standard Gear Ring and Pinion Sets ZG GM8.5-430 GM 8.5/8.6 in. 4.30 Gears

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

Part Number: SPZ-36217

Not Yet Reviewed

Estimated Ship Date: Jan 5, 2026 if ordered today

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Estimated Ship Date: Jan 5, 2026 if ordered today

USA Standard Gear Ring and Pinion Sets ZG GM7.5-411T GM 7.5/7.6 in. 4.11 Gears

USA Standard Ring & Pinion "thick" gear set for GM 7.5" in a 4.11 ratio

Part Number: SPZ-36200

3.0 out of 5 stars ( 1 )

Estimated Ship Date: Jan 2, 2026 if ordered today

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Estimated Ship Date: Jan 2, 2026 if ordered today

Yukon Gear & Axle Differential Clutch Sets YPKGM7.5-PC-DG1

Differential Clutch, Dura-Grip Composite Clutch Pack, Rear, GM, 7.5/7.625 in., Set

Part Number: YGA-16119

Not Yet Reviewed

Estimated Ship Date: Jan 20, 2026 if ordered today

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Estimated Ship Date: Jan 20, 2026 if ordered today

Richmond Gear EXCel Ring and Pinion Gear Installation Kits XL-1019-1

Ring and Pinion Kit

Part Number: RMG-XL-1019-1

Not Yet Reviewed

Estimated Ship Date: Jan 7, 2026 if ordered today

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Estimated Ship Date: Jan 7, 2026 if ordered today

ACDelco Differential Clutch Kits 12471404

Differential Clutches, GM 8.6, Eaton Positraction, Kit

Part Number: ADO-12471404

Not Yet Reviewed

Estimated Ship Date: Jan 19, 2026 if ordered today

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Estimated Ship Date: Jan 19, 2026 if ordered today

Motive Gear Crush Sleeves 9785792

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: Monday 12/22/2025

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Estimated Ship Date: Monday 12/22/2025

Detroit Speed Ford 9 in. QUADRALink Axle Housings 073501DS

Axle Housing, Ford 9 in. Quadralink, C6 Full Float Ends, Narrowed Housing, Satin Black, Buick, Chevy, Oldsmobile, Pontiac, Each

Part Number: DSR-073501DS

Not Yet Reviewed

Estimated Ship Date: Jan 8, 2026 if ordered today

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Estimated Ship Date: Jan 8, 2026 if ordered today

ACDelco - Axle Assemblies for 2013-2015 ENCORE, 2015 TRAX - 42550050

DIFFERENTIAL ASM

Part Number: ADO-42550050

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Jan 19, 2026 if ordered today

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Estimated Ship Date: Jan 19, 2026 if ordered today

Yukon Gear & Axle 12 Bolt GM 8.875 Inch Differential Cover YP C3-GM12P

Differential Cover, Aluminum Girdle Cover, Natural, 12-bolt, GM 8.875 in. Passenger Car, Each

Part Number: YGA-32116

Not Yet Reviewed

Estimated Ship Date: Jan 8, 2026 if ordered today

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Estimated Ship Date: Jan 8, 2026 if ordered today

Yukon Gear & Axle Bearing Kits BK GM8.5

Ring and Pinion Gear Installation Kit, Bearing Overhaul, 30 Spline, GM 8.5 in., Kit

Part Number: YGA-11067

Not Yet Reviewed

Estimated Ship Date: Jan 20, 2026 if ordered today

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Estimated Ship Date: Jan 20, 2026 if ordered today

SVL Drivetrain Spider Gear Kits 10020477

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

Not Yet Reviewed

Estimated Ship Date: Jan 5, 2026 if ordered today

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Estimated Ship Date: Jan 5, 2026 if ordered today

Currie 9 in. Rear-End Housing Assemblies CE-GMB6570X

Axle Assembly, 9 in. Alloy Steel, 1541H Alloy Steel Axles, 31 Spline Axles, GM, Each

Part Number: CUR-CE-GMB6570X

Not Yet Reviewed

Estimated Ship Date: Jan 13, 2026 if ordered today

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Estimated Ship Date: Jan 13, 2026 if ordered today

Motive Gear Ring Gear Spacers 085050

Ring Gear Spacer, 0.200 in. Thick, 10-bolt, GM 8.5 in., Each

Part Number: MGR-085050

4.5 out of 5 stars ( 6 )

Estimated Ship Date: Jan 8, 2026 if ordered today

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Estimated Ship Date: Jan 8, 2026 if ordered today

ACDelco GM Genuine Parts Multi-Purpose Threaded Plugs 19256068

Plug Fitting, GM Genuine Parts Multi-Purpose Threaded Plug, Steel, Natural, Buick, Cadillac, Chevrolet, GMC, Pontiac, Saturn, Suzuki, Each

Part Number: ADO-19256068

Not Yet Reviewed

Estimated Ship Date: Monday 12/22/2025

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Estimated Ship Date: Monday 12/22/2025

Yukon Gear & Axle Ring and Pinion Gear and Differential Combos YGK2243

Ring and Pinion Gears,Yukon Gear & Axle 7.5" GM, 4.11 Ratio Rear Ring & Pinion GearInstall Kit 26 Spline and 2.25" OD Axle Bearings & Seals

Part Number: YGA-10643

Not Yet Reviewed

Estimated Ship Date: Jan 20, 2026 if ordered today

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Estimated Ship Date: Jan 20, 2026 if ordered today

Yukon Gear & Axle Ring and Pinion Gear and Differential Combos YGK2242

Ring and Pinion Gears,Yukon Gear & Axle 7.5" GM, 3.73 Ratio Rear Ring & Pinion GearInstall Kit 26 Spline and 2.25" OD Axle Bearings & Seals

Part Number: YGA-10642

Not Yet Reviewed

Estimated Ship Date: Jan 19, 2026 if ordered today

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Estimated Ship Date: Jan 19, 2026 if ordered today

USA Standard Gear Ring and Pinion Sets ZG GM7.5-342T GM 7.5/7.625 in. 3.42 Gears

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-36196

Not Yet Reviewed

Estimated Ship Date: Jan 5, 2026 if ordered today

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Estimated Ship Date: Jan 5, 2026 if ordered today

Summit Racing™ 9 in. Ford Grand National Rear-End Assemblies for 1978-1987 REGAL, MONTE CARLO, 1980-1981 CUTLASS - SUM-CSUMCT006

Rear End Assembly, Grand National, Ford 9 in., 31-Spline Axles, 5 x 4.75 in. Pattern, G-Body Mounts, Kit

Part Number: SUM-CSUMCT006

Not Yet Reviewed

Estimated Ship Date: Monday 12/22/2025

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Estimated Ship Date: Monday 12/22/2025

Yukon Gear & Axle Crosspin Bolts YSPBLT-065

Crosspin Bolt, Each

Part Number: YGA-33344

3.0 out of 5 stars ( 2 )

Estimated Ship Date: Jan 19, 2026 if ordered today

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Estimated Ship Date: Jan 19, 2026 if ordered today

SVL Drivetrain Ring and Pinion Gear Sets 2020954 GM 8.5/8.6 in. 3.90 Gears

Ring & Pinion Gear Set GM 10 Bolt 8.5" / 3.90 Ratio

Part Number: SVL-2020954

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Jan 5, 2026 if ordered today

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Estimated Ship Date: Jan 5, 2026 if ordered today