GMC K1500 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 Lockers GM 8.5/8.6 Inch 187C148A

Differential, Eaton Detroit Locker, 30-Spline, GM, 8.5 in., Each

Part Number: ETN-187C148A

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Feb 2, 2026 if ordered today

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Estimated Ship Date: Feb 2, 2026 if ordered today

ARB Air Locker 33 Spline Differential AAM 9.25/9.50 14-bolt RD197

Differential Carrier, Air Locker, Nodular Iron, Kit

Part Number: ARB-RD197

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Tomorrow

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Estimated Ship Date: Tomorrow

Yukon Gear & Axle 4340 Chromoly Axles YA W24150

Yukon front 4340 Chromoly axle kit for '69-'80 GM truck and Blazer, Dana 44 with 19/30 splines

Part Number: YGA-21413

4.6 out of 5 stars ( 5 )

Estimated Ship Date: Tomorrow

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Estimated Ship Date: Tomorrow

Yukon Gear & Axle 4340 Chromoly Axles YA W24152

Yukon front 4340 Chromoly axle kit for '69-'80 GM truck and Blazer

Part Number: YGA-21414

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

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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Estimated Ship Date: Tomorrow

USA Standard Gear Ring and Pinion Gear and Differential Combos ZGK2002

Ring and Pinion Gears,USA Standard 8.5" GM, 3.73 Ratio Rear Ring & Pinion GearInstall Kit 30

Part Number: SPZ-10713

Not Yet Reviewed

Estimated Ship Date: Jan 23, 2026 if ordered today

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Estimated Ship Date: Jan 23, 2026 if ordered today

Motive Gear Ring and Pinion Gear and Installation Kit Combos MGK-202 Dana 44/GM 8.875 in. (12-bolt) truck 4.10 Gears

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

Part Number: MGR-MGK-202

Not Yet Reviewed

Estimated Ship Date: Jan 26, 2026 if ordered today

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Estimated Ship Date: Jan 26, 2026 if ordered today

USA Standard Gear Ring and Pinion Gear and Differential Combos ZGK2005

Ring and Pinion Gears,USA Standard 8.5" GM, 4.88 Ratio Rear Ring & Pinion GearInstall Kit 30

Part Number: SPZ-10716

Not Yet Reviewed

Estimated Ship Date: Jan 23, 2026 if ordered today

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Estimated Ship Date: Jan 23, 2026 if ordered today

USA Standard Gear Ring and Pinion Gear and Differential Combos ZGK2018

Ring and Pinion Gears,USA Standard 8.6" GM, 4.11 Ratio Rear Ring & Pinion Gea

Part Number: SPZ-10729

Not Yet Reviewed

Estimated Ship Date: Jan 23, 2026 if ordered today

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Estimated Ship Date: Jan 23, 2026 if ordered today

USA Standard Gear Ring and Pinion Gear and Differential Combos ZGK2017

Ring and Pinion Gears,USA Standard 8.6" GM, 3.73 Ratio Rear Ring & Pinion Gea

Part Number: SPZ-10728

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Jan 23, 2026 if ordered today

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Estimated Ship Date: Jan 23, 2026 if ordered today

Auburn Gear Select-A-Loc 30 Spline Differential GM 8.5/8.6 Inch 545004

Auburn Gear Select-A-Loc 30 Spline Differential GM 8.5/8.6 Inch 545004

Differential, Select-A-Loc, Locker, 30-Spline, Buick, Chevy 8.5 in., Each

Part Number: AUB-545004

3.0 out of 5 stars ( 3 )

Estimated Ship Date: Tomorrow

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Estimated Ship Date: Tomorrow

Motive Gear Ring and Pinion Gear and Installation Kit Combos MGK-210 GM 8.5/GM 8.875 in. (12-bolt) truck 4.56 Gears

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

Part Number: MGR-MGK-210

Not Yet Reviewed

Estimated Ship Date: Jan 26, 2026 if ordered today

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Estimated Ship Date: Jan 26, 2026 if ordered today

Yukon Gear & Axle Grizzly Lockers Dana 44 YGLD44-3-30

Grizzly Locker, Dana 44, 30 Spline, 3.73 and Down, Each

Part Number: YGA-28021

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Feb 9, 2026 if ordered today

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Estimated Ship Date: Feb 9, 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

Motive Gear Ring and Pinion Gear and Installation Kit Combos MGK-201 Dana 44/GM 8.875 in. (12-bolt) truck 3.73 Gears

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

Part Number: MGR-MGK-201

Not Yet Reviewed

Estimated Ship Date: Jan 26, 2026 if ordered today

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Estimated Ship Date: Jan 26, 2026 if ordered today

Motive Gear Ring and Pinion Gear and Installation Kit Combos MGK-215 GM 8.25 in. IFS/GM 8.5 in. 4.11 Gears

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

Part Number: MGR-MGK-215

Not Yet Reviewed

Estimated Ship Date: Jan 26, 2026 if ordered today

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Estimated Ship Date: Jan 26, 2026 if ordered today

Motive Gear Ring and Pinion Gear and Installation Kit Combos MGK-216 GM 8.25 in. IFS/GM 8.5 in. 4.30 Gears

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

Part Number: MGR-MGK-216

Not Yet Reviewed

Estimated Ship Date: Jan 26, 2026 if ordered today

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Estimated Ship Date: Jan 26, 2026 if ordered today

Motive Gear Ring and Pinion Gear and Installation Kit Combos MGK-207 GM 8.5/GM 8.875 in. (12-bolt) truck 3.73 Gears

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

Part Number: MGR-MGK-207

Not Yet Reviewed

Estimated Ship Date: Jan 26, 2026 if ordered today

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Estimated Ship Date: Jan 26, 2026 if ordered today

Motive Gear Ring and Pinion Gear and Installation Kit Combos MGK-208 GM 8.5/GM 8.875 in. (12-bolt) truck 4.11 Gears

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

Part Number: MGR-MGK-208

Not Yet Reviewed

Estimated Ship Date: Jan 26, 2026 if ordered today

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Estimated Ship Date: Jan 26, 2026 if ordered today

Powertrax Grip Lok Traction Systems Dana 44 LK444430

Differential Carrier, Grip Lok, Mechanical Locker, 30 Spline, Dana 44, Rear, Each

Part Number: PWT-LK444430

Not Yet Reviewed

Estimated Ship Date: Feb 20, 2026 if ordered today

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Estimated Ship Date: Feb 20, 2026 if ordered today

Motive Gear Ring and Pinion Gear and Installation Kit Combos MGK-204 Dana 44/GM 8.875 in. (12-bolt) truck 4.56 Gears

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

Part Number: MGR-MGK-204

Not Yet Reviewed

Estimated Ship Date: Jan 23, 2026 if ordered today

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Estimated Ship Date: Jan 23, 2026 if ordered today

Zumbrota Remanufactured Axle Assemblies RAA440-1444C

Axle Assembly, Remanufactured, Open, 3.42:1 Ratio, Each

Part Number: ZUD-RAA440-1444C

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

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USA Standard Gear Ring and Pinion Gear and Differential Combos ZGK2016

Ring and Pinion Gears,USA Standard 8.6" GM, 3.42 Ratio Rear Ring & Pinion Gea

Part Number: SPZ-10727

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

Zumbrota Remanufactured Axle Assemblies RAA440-1444D

Axle Assembly, Remanufactured, Open, 3.73:1 Ratio, Each

Part Number: ZUD-RAA440-1444D

Not Yet Reviewed

Estimated Ship Date: Jan 16, 2026 if ordered today

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Estimated Ship Date: Jan 16, 2026 if ordered today

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Zumbrota Remanufactured Axle Assemblies RAA440-1444B-E

Axle Assembly, Remanufactured, Open, 3.73:1 Ratio, Each

Part Number: ZUD-RAA4401444BE

Not Yet Reviewed

Estimated Ship Date: Jan 16, 2026 if ordered today

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Estimated Ship Date: Jan 16, 2026 if ordered today

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