1985 GMC 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 10.5 Inch (14-bolt) 915A545

Differential, Eaton Detroit Truetrac, 30-Spline, GM, 10.5 in. Ring Gear, 4.10 and Lower Ratios, Each

Part Number: ETN-915A545

4.58 out of 5 stars ( 12 )

Estimated Ship Date: Tomorrow

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Auburn Gear Select-A-Loc 35 Spline Differential Dana 60 545022

Auburn Gear Select-A-Loc 35 Spline Differential Dana 60 545022

Differential, Auburn, Locker, Select-A-Loc, 35-Spline, Dana 60, 10-Bolt, Each

Part Number: AUB-545022

Not Yet Reviewed

Estimated Ship Date: Tomorrow

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Estimated Ship Date: Tomorrow

Allstar Performance 9 in. Non-Floater Offset Housing Kits ALL68759

Axel Housing, Steel, Natural, Ford 9 in., Buick, Chevrolet, GMC, Oldsmobile, Pontiac, Each

Part Number: AAF-ALL68759

Not Yet Reviewed

Estimated Ship Date: Feb 25, 2026 if ordered today

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Estimated Ship Date: Feb 25, 2026 if ordered today

Auburn Gear Select-A-Loc 35 Spline Differential Dana 70 545026

Differential, Auburn, Locker, Select-A-Loc, 35-Spline, Dana 70, 10-Bolt, Each

Part Number: AUB-545026

Not Yet Reviewed

Estimated Ship Date: Tomorrow

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Yukon Gear & Axle Grizzly Lockers Dana 60 YGLD60-3-35

Grizzly Locker, Dana 60, 35 Spline, 4.10 Down Ratio, Each

Part Number: YGA-28003

Not Yet Reviewed

Estimated Ship Date: Tomorrow

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Auburn Gear Select-A-Loc 35 Spline Differential Dana 60 545023

Differential, Auburn, Locker, Select-A-Loc, 35-Spline, Dana 60, 10-Bolt, Each

Part Number: AUB-545023

Not Yet Reviewed

Estimated Ship Date: Feb 25, 2026 if ordered today

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Estimated Ship Date: Feb 25, 2026 if ordered today

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Eaton Electronic ELocker 35 Spline Differential Dana 60/60-HD 14023-010

4 out of 5 stars ( 2 )

Estimated Ship Date: Tomorrow

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Motive Gear Ring and Pinion Gear and Installation Kit Combos MGK-213 GM 8.5 in. 4.56 Gears

DIFFERENTIAL

Part Number: MGR-MGK-213

Not Yet Reviewed

Estimated Ship Date: Feb 6, 2026 if ordered today

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Estimated Ship Date: Feb 6, 2026 if ordered today

Eaton Detroit Lockers GM 9.5 Inch 225C135A

Differential, Eaton Detroit Locker, 33-Spline, GM, 9.5 in., 14-Bolt, Each

Part Number: ETN-225C135A

5.0 out of 5 stars ( 3 )

Estimated Ship Date: Tomorrow

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Yukon Gear & Axle 4340 Chromoly Axles YA W26002

Yukon front 4340 Chromoly axle kit for '77-'91 GM, Dana 60 with 35 splines

Part Number: YGA-21396

Not Yet Reviewed

Estimated Ship Date: Feb 18, 2026 if ordered today

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Estimated Ship Date: Feb 18, 2026 if ordered today

Yukon Gear & Axle Grizzly Lockers Dana 60 YGLD60-3-30

Grizzly Locker, Dana 60, 30 Spline, 4.10 Down Ratio, Each

Part Number: YGA-28002

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Feb 16, 2026 if ordered today

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Estimated Ship Date: Feb 16, 2026 if ordered today

Motive Gear Ring and Pinion Gear and Installation Kit Combos MGK-212 GM 8.5 in. 4.30 Gears

Differential Ring and Pinion, Differential Ring and Pinon Front and Rear Complete Kit

Part Number: MGR-MGK-212

Not Yet Reviewed

Estimated Ship Date: Feb 6, 2026 if ordered today

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Estimated Ship Date: Feb 6, 2026 if ordered today

Yukon Gear & Axle Dura Grip Positraction Carriers Dana 70/70-U YDGD70-3-35

Differential Carrier, Dura Grip Positraction, Clutch-type, 35-spline, Nodular Iron, Dana 70, Dana 70-U, Each

Part Number: YGA-26044

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Feb 16, 2026 if ordered today

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Estimated Ship Date: Feb 16, 2026 if ordered today

Eaton Detroit Lockers Dana 70-HD 225SL58A

Differential, Detroit Locker, 35-Spline, Dana 70-HD, Each

Part Number: ETN-225SL58A

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Feb 11, 2026 if ordered today

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Estimated Ship Date: Feb 11, 2026 if ordered today

Powertrax Grip Pro Traction Systems GM 10.5 Inch GT231430

Differential Carriers, Grip Pro Traction System, 30 Spline, 10.5 in. GM, Each

Part Number: PWT-GT231430

Not Yet Reviewed

Estimated Ship Date: Mar 9, 2026 if ordered today

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Estimated Ship Date: Mar 9, 2026 if ordered today

Powertrax Grip Pro Traction Systems Dana 60 GT436035

Differential, Grip Pro Traction System, 35-Spline, Dana 60, Each

Part Number: PWT-GT436035

Not Yet Reviewed

Estimated Ship Date: Mar 9, 2026 if ordered today

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Estimated Ship Date: Mar 9, 2026 if ordered today

Allstar Performance 9 in. Non-Floater Offset Housing Kits ALL68758

Axel Housing, Steel, Natural, Ford 9 in., Buick, Chevrolet, GMC, Oldsmobile, Pontiac, Each

Part Number: AAF-ALL68758

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Feb 25, 2026 if ordered today

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Estimated Ship Date: Feb 25, 2026 if ordered today

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: Tomorrow

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Yukon Gear & Axle Grizzly Lockers Dana 60 YGLD60-4-30

Differential Carrier, Grizzly Locker, Chromium Alloy Steel, 30-spline, Dana 60, for 4.56 Ratio and Up, Each

Part Number: YGA-28004

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Feb 16, 2026 if ordered today

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Estimated Ship Date: Feb 16, 2026 if ordered today

Motive Gear Ring and Pinion Gear and Installation Kit Combos MGK-211 GM 8.5 in. 4.11 Gears

RING AND PINION

Part Number: MGR-MGK-211

Not Yet Reviewed

Estimated Ship Date: Feb 6, 2026 if ordered today

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Estimated Ship Date: Feb 6, 2026 if ordered today

ARB Air Locker 30 Spline Differential GM 8.5 Inch RD222

Differential Carrier, Air Locker, Nodular Iron, Rear, GM 8.5 in., Kit

Part Number: ARB-RD222

Not Yet Reviewed

Estimated Ship Date: Tomorrow

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Estimated Ship Date: Tomorrow

Yukon Gear & Axle Zip Lockers Dana 60/61 YZLD60-4-30

Zip Locker, Air Locker, Dana 60/61 30 Spline, 4.56 Up Ratio, Each

Part Number: YGA-34023

Not Yet Reviewed

Estimated Ship Date: Feb 17, 2026 if ordered today

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Estimated Ship Date: Feb 17, 2026 if ordered today

USA Standard Gear Ring and Pinion Gear and Differential Combos ZGK2231

Ring and Pinion Gears,USA Standard 8.875" GM 12 Bolt Truck, 3.08 Ratio Rear Ring & Pinion Gea

Part Number: SPZ-10686

Not Yet Reviewed

Estimated Ship Date: Feb 2, 2026 if ordered today

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Estimated Ship Date: Feb 2, 2026 if ordered today

USA Standard Gear Ring and Pinion Gear and Differential Combos ZGK2234

Ring and Pinion Gears,USA Standard 8.875" GM 12 Bolt Truck, 4.11 Ratio Rear Ring & Pinion Gea

Part Number: SPZ-10689

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

Yukon Gear & Axle Dura Grip Positraction Carriers Dana 60/Super 60 YDGD60-4-35

Differential Carrier, Dura Grip Positraction, Clutch-type, 35-spline, Nodular Iron, Dana 60, Dana 61, Dana Super 60, Each

Part Number: YGA-26042

Not Yet Reviewed

Estimated Ship Date: Feb 16, 2026 if ordered today

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Estimated Ship Date: Feb 16, 2026 if ordered today

Yukon Gear & Axle 40 Spline Differential Carriers Dana 60 YGLD60-3-40

Differential Carrier, Locker, 40-spline, Steel, Dana 60, Chevy, GMC, Dodge, Plymouth, Ford, Jeep, Each

Part Number: YGA-28024

Not Yet Reviewed

Estimated Ship Date: Feb 16, 2026 if ordered today

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Estimated Ship Date: Feb 16, 2026 if ordered today