CHEVROLET AVALANCHE Differential & Rear-End Components Transmission & Drivetrain - In Stock Filter Options - Vendor In Stock Filter Options - Free Shipping on Orders Over $109 at Summit Racing

Eaton Detroit Truetrac 30 Spline Differential GM 8.5/8.6 Inch 913A481

Differential, Eaton Detroit Truetrac, Limited Slip, 30-Spline, GM, 8.5/8.6 in., 2.73 & up, Each

Part Number: ETN-913A481

4.85 out of 5 stars ( 135 )

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Summit Racing™ Positraction 30 Spline Differential Carriers GM 8.6 Inch SUM-730968

Differential Carrier, Positraction, Nodular Iron, GM 8.5/8.6 in., 30 Spline, 2.73 Up Ratio, Each

Part Number: SUM-730968

5.0 out of 5 stars ( 10 )

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Powertrax Grip Pro Traction Systems GM 8.5 Inch GT201030

Differential, Grip Pro Traction System, 30-Spline, GM 8.5in., 8.6 in., Each

Part Number: PWT-GT201030

5.0 out of 5 stars ( 5 )

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Motive Gear Ring and Pinion Sets GM10-390 GM 8.5/8.6 in. 3.90 Gears

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

Part Number: MGR-GM10-390

3.0 out of 5 stars ( 2 )

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Motive Gear Ring and Pinion Sets GM10-456IFS GM 8.25 in. IFS 4.56 Gears

Gear, Ring and Pinion, 4.56:1 Ratio, GM, 8.25 in., IFS Front, Set

Part Number: MGR-GM10-456IFS

5.0 out of 5 stars ( 2 )

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Yukon Gear & Axle Ring and Pinion Sets YG GM8.5-390 GM 8.5/8.6 in. 3.90 Gears

Ring and Pinion Gears, 3.90:1 Ratio, 30-spline, Standard Ring Gear Rotation, GM 8.5 in., GM 8.6 in., Set

Part Number: YGA-24159

5.0 out of 5 stars ( 3 )

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Yukon Gear & Axle Dura Grip Positraction Carriers Chrysler 9.25/GM 9.5 Inch YDGGM9.5-33-1

Differential Carrier, Dura Grip Positraction, Clutch-type, 33-spline, Chevy, Dodge, GMC, Hummer, Ram, Each

Part Number: YGA-26025

5.0 out of 5 stars ( 2 )

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Yukon Gear & Axle 30 Spline Differential Carriers GM 8.6 Inch YC G40048044

Differential Carrier, Open, Loaded, GM 8.6 in. 30 Spline, Each

Part Number: YGA-20098

4.75 out of 5 stars ( 4 )

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Motive Gear Ring and Pinion Sets GM10-273 GM 8.5/8.6 in. 2.73 Gears

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

Part Number: MGR-GM10-273

4.5 out of 5 stars ( 2 )

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ACDelco 30 Spline Differential Carriers GM 8.5/8.625 Inch 84554713

Differential, GM 8.5/8.625 in., Buick, Cadillac, Chevy, GMC, Hummer, Isuzu, Oldsmobile, Saab, Rear, Each

Part Number: ADO-84554713

5.0 out of 5 stars ( 2 )

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Yukon Gear & Axle Ring and Pinion Sets YG GM8.5-308 GM 8.5/8.6 in. 3.08 Gears

Ring and Pinion Gears, 3.08:1 Ratio, 30-spline, Standard Rotation, GM 8.5/8.6 in., Set

Part Number: YGA-24492

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Feb 23, 2026 if ordered today

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Estimated Ship Date: Feb 23, 2026 if ordered today

Need It Sooner? We recommend these similar substitute parts:

Allstar Performance Ring and Pinion Gear Sets ALL70120 GM 8.5/8.6 in. 3.08 Gears

5 out of 5 stars ( 2 )

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Powertrax Lock-Right Lockers Chrysler 9.25 Inch 1950-LR

Differential, Lock-Right, Locker, 33-Spline, GM, 9.2 in./9.5 in., Each

Part Number: PWT-1950-LR

4.67 out of 5 stars ( 3 )

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Yukon Gear & Axle Master Overhaul Kits YK GM9.5-B

Ring and Pinion Gear Installation Kit, Master Overhaul, 30 Spline, GM 9.5 in., Kit

Part Number: YGA-14097

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Feb 23, 2026 if ordered today

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Estimated Ship Date: Feb 23, 2026 if ordered today

Richmond Gear Ring and Pinion Sets 69-0175-1 GM 8.5/8.6 in. 5.57 Gears

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 )

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Yukon Gear & Axle Ring and Pinion Sets YG GM8.5-273 GM 8.5/8.6 in. 2.73 Gears

Ring and Pinion Gear, 2.73:1 Ratio, GM 8.5/8.6, 10 Bolt Cover, 30 Spline, 10 Ring Gear Bolts, Buick, Chevrolet, GMC, Oldsmobile, Pontiac, Set

Part Number: YGA-24490

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Estimated Ship Date: Feb 23, 2026 if ordered today

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Estimated Ship Date: Feb 23, 2026 if ordered today

USA Standard Gear Ring and Pinion Gear Kit Packages ZGK2021 GM 8.6 in. 3.42 Gears

Ring and Pinion Gears,USA Standard 8.6" GM, 3.42 Ratio Rear Ring & Pinion GearInstall Kit Axle Bearings & Seals

Part Number: SPZ-10732

Not Yet Reviewed

Estimated Ship Date: Feb 9, 2026 if ordered today

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Estimated Ship Date: Feb 9, 2026 if ordered today

Yukon Gear & Axle 33 Spline Differential Carriers Chrysler/GM 9.25 Inch YC G40013506

Differential Carrier, Open, Loaded, GM/Chrysler 9.25/9.50 in. 33 Spline, Each

Part Number: YGA-20097

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Estimated Ship Date: Feb 23, 2026 if ordered today

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Estimated Ship Date: Feb 23, 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: Feb 3, 2026 if ordered today

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Estimated Ship Date: Feb 3, 2026 if ordered today

USA Standard Gear Ring and Pinion Gear Kit Packages ZGK2032 GM 8.6 in. 3.73 Gears

Ring and Pinion Gears,USA Standard 8.6" GM, 3.73 Ratio Rear Ring & Pinion GearInstall Kit Axle Bearings & Seals

Part Number: SPZ-10743

Not Yet Reviewed

Estimated Ship Date: Feb 9, 2026 if ordered today

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Estimated Ship Date: Feb 9, 2026 if ordered today

Yukon Gear & Axle Ring and Pinion Sets YG GM8.25-373R GM 8.25 in. IFS 3.73 Gears

Gear, Ring and Pinion, 3.73:1 Ratio, 1.625 in. Pinion, 30 Spline, 8.250 in. Ring Gear, GM 8.25 in. IFS, Set

Part Number: YGA-24489

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Estimated Ship Date: Feb 23, 2026 if ordered today

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Estimated Ship Date: Feb 23, 2026 if ordered today

USA Standard Gear Ring and Pinion Gear Kit Packages ZGK2023 GM 8.6 in. 4.11 Gears

Ring and Pinion Gears,USA Standard 8.6" GM, 4.11 Ratio Rear Ring & Pinion GearInstall Kit Axle Bearings & Seals

Part Number: SPZ-10734

Not Yet Reviewed

Estimated Ship Date: Feb 9, 2026 if ordered today

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Estimated Ship Date: Feb 9, 2026 if ordered today

Dorman Differential Carriers 697-391

Diff Carrier Assy

Part Number: RNB-697-391

Not Yet Reviewed

Estimated Ship Date: Feb 11, 2026 if ordered today

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Estimated Ship Date: Feb 11, 2026 if ordered today

USA Standard Gear Ring and Pinion Gear Kit Packages ZGK2031 GM 8.6 in. 3.42 Gears

Ring and Pinion Gears,USA Standard 8.6" GM, 3.42 Ratio Rear Ring & Pinion GearInstall Kit Axle Bearings & Seals

Part Number: SPZ-10742

Not Yet Reviewed

Estimated Ship Date: Feb 9, 2026 if ordered today

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Estimated Ship Date: Feb 9, 2026 if ordered today

USA Standard Gear Ring and Pinion Gear Kit Packages ZGK2033 GM 8.6 in. 4.11 Gears

Ring and Pinion Gears, 8.6 in. GM, 4.11 Ratio, 1.626 in. Pinion Shaft Diameter, Rear, Kit

Part Number: SPZ-10744

Not Yet Reviewed

Estimated Ship Date: Feb 9, 2026 if ordered today

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Estimated Ship Date: Feb 9, 2026 if ordered today

Yukon Gear & Axle Ring and Pinion Sets YG GM8.5-513 GM 8.5/8.6 in. 5.13 Gears

Ring and Pinion Gears, 5.13:1 Ratio, 30-spline, Standard Ring Gear Rotation, GM 8.5/8.6 in., Set

Part Number: YGA-24163

Not Yet Reviewed

Estimated Ship Date: Feb 23, 2026 if ordered today

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Estimated Ship Date: Feb 23, 2026 if ordered today