GMC SIERRA 2500 HD CLASSIC Differential & Rear-End Components Transmission & Drivetrain

Eaton Detroit Truetrac 30 Spline Differential AAM 11.5 Inch 14-bolt 915A568

Differential, Eaton Detroit Truetrac, 30-Spline, AAM, 11.5 in., 14-Bolt, Each

Part Number: ETN-915A568

4.64 out of 5 stars ( 11 )

Estimated Ship Date: Monday 4/20/2026 if shipped by air

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Estimated Ship Date: Monday 4/20/2026 if shipped by air

Summit Racing™ Positraction 30 Spline Differential Carriers GM 10.5 Inch (14-bolt) SUM-730987

Differential Carrier, Positraction, 30-spline, Steel, Rear, Chevy, GMC, GM 10.5 in. 14-bolt, Each

Part Number: SUM-730987

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 4/20/2026 if shipped by air

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Estimated Ship Date: Monday 4/20/2026 if shipped by air

Eaton Detroit Truetrac 33 Spline Differential GM 9.5 Inch 914A538

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

Part Number: ETN-914A538

4.44 out of 5 stars ( 9 )

Estimated Ship Date: Monday 4/20/2026 if shipped by air

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Estimated Ship Date: Monday 4/20/2026 if shipped by air

Motive Gear Ring and Pinion Sets GM10.5-410 GM 10.5 in. (14-bolt) 4.10 Gears

Gear, Ring and Pinion, 4.10:1 Ratio, GM, 10.5 in., 14-Bolt, Fits 4.10:1 and Numerically Lower Carrier, Set

Part Number: MGR-GM10-5-410

4.86 out of 5 stars ( 7 )

Estimated Ship Date: Monday 4/20/2026 if shipped by air

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Estimated Ship Date: Monday 4/20/2026 if shipped by air

Alloy USA Mini Spools GM14/MSPL

Mini Spool, 30-spline, Steel, GM 10.5 in. (14-bolt), Each

Part Number: ALY-GM14MSPL

4.13 out of 5 stars ( 8 )

Estimated Ship Date: Monday 4/20/2026 if shipped by air

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Estimated Ship Date: Monday 4/20/2026 if shipped by air

Yukon Gear & Axle Dura Grip Positraction Carriers GM 10.5 Inch (14-bolt) YDGGM14T-3-30-1

Differential Carrier, Limited Slip, 30-Spline, GM 10.5 in. (14-bolt), Steel, Rear, for 4.10 and Numerically Lower Ratios, Chevy, GMC, Each

Part Number: YGA-26030

5.0 out of 5 stars ( 3 )

Estimated Ship Date: Monday 4/20/2026 if shipped by air

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Estimated Ship Date: Monday 4/20/2026 if shipped by air

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: Apr 23, 2026 if ordered today

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Estimated Ship Date: Apr 23, 2026 if ordered today

B&M 14 Bolt GM 10.5 Inch Differential Cover 70501

Differential Cover, Aluminum, Natural, Finned, B&M Logo, GM 10.5 in., 14-Bolt Cover, Each

Part Number: BMM-70501

4.55 out of 5 stars ( 11 )

Estimated Ship Date: Monday 4/20/2026 if shipped by air

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Estimated Ship Date: Monday 4/20/2026 if shipped by air

Yukon Gear & Axle Ring and Pinion Sets YG GM11.5-373 AAM/Chrysler/GM 11.5 in. 3.73 Gears

Ring and Pinion Gears, 3.73:1 Ratio, 11.500 in. Ring Gear, Chrysler 11.5 in., GM 11.5 in., Set

Part Number: YGA-24441

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Monday 4/20/2026 if shipped by air

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Estimated Ship Date: Monday 4/20/2026 if shipped by air

Yukon Gear & Axle Master Overhaul Kits YK GM11.5

Ring and Pinion Gear Installation Kit, Master Overhaul, 30 Spline, GM/Chrysler 11.5 in., Kit

Part Number: YGA-14066

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 4/20/2026 if shipped by air

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Estimated Ship Date: Monday 4/20/2026 if shipped by air

Motive Gear Ring and Pinion Sets GM10.5-373 GM 10.5 in. (14-bolt) 3.73 Gears

Gear, Ring and Pinion, 3.73:1 Ratio, GM, 10.5 in., 14-Bolt, Set

Part Number: MGR-GM10-5-373

4.75 out of 5 stars ( 4 )

Estimated Ship Date: Monday 4/20/2026 if shipped by air

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Estimated Ship Date: Monday 4/20/2026 if shipped by air

Timken Pinion Bearing Races M802011

Bearing Race, Pinion, 3.250 in. Diameter, Each

Part Number: TMK-M802011

5.0 out of 5 stars ( 6 )

Estimated Ship Date: Monday 4/20/2026 if shipped by air

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Estimated Ship Date: Monday 4/20/2026 if shipped by air

Powertrax Lock-Right Lockers GM 10.5 Inch (14-bolt) 1955-LR

Differential, Lock-Right, Locker, 30-Spline, GM, 10.5 in., Each

Part Number: PWT-1955-LR

4.75 out of 5 stars ( 4 )

Estimated Ship Date: Monday 4/20/2026 if shipped by air

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Estimated Ship Date: Monday 4/20/2026 if shipped by air

Yukon Gear & Axle 14 Bolt GM 9.5 Inch Differential Cover YP C5-GM9.5

Differential Cover, 14-bolt, Steel, Natural, GM 9.5 in., Each

Part Number: YGA-32333

4.0 out of 5 stars ( 4 )

Estimated Ship Date: Monday 4/20/2026 if shipped by air

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Estimated Ship Date: Monday 4/20/2026 if shipped by air

Yukon Gear & Axle Ring and Pinion Sets YG GM14T-411 GM 10.5 in. (14-bolt) 4.11 Gears

Gear, Ring and Pinion, 4.11:1 Ratio, 1.750 in. Pinion, 30 Spline, 10.500 in. Ring Gear, GM 14 Bolt, Set

Part Number: YGA-24135

Not Yet Reviewed

Estimated Ship Date: Monday 4/20/2026 if shipped by air

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Estimated Ship Date: Monday 4/20/2026 if shipped by air

Timken Differential Bearings 387AS

Differential Carrier Bearing, Rear, Steel, 2.250 in. Diameter, Chevy, GMC, Dodge, Mercedes-Benz, Workhorse

Part Number: TMK-387AS

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Monday 4/20/2026 if shipped by air

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Estimated Ship Date: Monday 4/20/2026 if shipped by air

Yukon Gear & Axle Ring and Pinion Sets YG GM9.5-456 GM 9.5 in. 4.56 Gears

Ring & Pinion Gear, 4.56 Ratio, GM, 9.5 in., 14-Bolt, Rear, Set

Part Number: YGA-24168

Not Yet Reviewed

Estimated Ship Date: Monday 4/20/2026 if shipped by air

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Estimated Ship Date: Monday 4/20/2026 if shipped by air

Motive Gear Ring and Pinion Sets GM9.5-410 GM 9.5 in. 4.10 Gears

Gear, Ring and Pinion, 4.10:1 Ratio, GM, 9.5 in., 14-Bolt, Truck, Set

Part Number: MGR-GM9-5-410

3.4 out of 5 stars ( 5 )

Estimated Ship Date: Monday 4/20/2026 if shipped by air

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Estimated Ship Date: Monday 4/20/2026 if shipped by air

Yukon Gear & Axle Ring and Pinion Sets YG GM14T-321 GM 10.5 in. (14-bolt) 3.21 Gears

Ring and Pinion Gears, GM 10.5 in. (14-bolt), 3.21:1 Ratio, 30-spline, Standard Ring Gear Rotation, Rear, Chevrolet, GMC, Set

Part Number: YGA-24465

Not Yet Reviewed

Estimated Ship Date: Monday 4/20/2026 if shipped by air

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Estimated Ship Date: Monday 4/20/2026 if shipped by air

Yukon Gear & Axle Crush Sleeve Eliminator Kits SK CSGM14T

Crush Sleeve Eliminator Kit, Steel Spacer, Pinion Shims, GM 10.5 in. (14-bolt), Kit

Part Number: YGA-55067

5.0 out of 5 stars ( 7 )

Estimated Ship Date: Monday 4/20/2026 if shipped by air

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Estimated Ship Date: Monday 4/20/2026 if shipped by air

Motive Gear Ring and Pinion Sets GM9.5-342 GM 9.5 in. 3.42 Gears

Gear, Ring and Pinion, 3.42:1 Ratio, GM, 9.5 in., 14-Bolt, Truck, Set

Part Number: MGR-GM9-5-342

5.0 out of 5 stars ( 4 )

Estimated Ship Date: Monday 4/20/2026 if shipped by air

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Estimated Ship Date: Monday 4/20/2026 if shipped by air

Yukon Gear & Axle Ring and Pinion Sets YG GM9.5-411 GM 9.5 in. 4.11 Gears

Ring and Pinion Gears, 4.11:1 Ratio, 30-spline, Standard Rotation, GM 9.5 in., Set

Part Number: YGA-24167

Not Yet Reviewed

Estimated Ship Date: Monday 4/20/2026 if shipped by air

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Estimated Ship Date: Monday 4/20/2026 if shipped by air

Timken Differential Bearings SET42

Differential Carrier Bearing, Steel, Each

Part Number: TMK-SET42

3.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 4/20/2026 if shipped by air

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Estimated Ship Date: Monday 4/20/2026 if shipped by air

Yukon Gear & Axle Full Spools YP FSGM11.5-30

Yukon steel spool for GM & Chrysler 11.5" with 30 spline axles

Part Number: YGA-32185

Not Yet Reviewed

Estimated Ship Date: May 18, 2026 if ordered today

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Estimated Ship Date: May 18, 2026 if ordered today

Yukon Gear & Axle 30 Spline Differential Carrier Cases GM 10.5 Inch (14-bolt) YC G6258336

Differential Carrier Cases, GM 10.50 in. 30 Spline, 4.10 and Down Ratio, Each

Part Number: YGA-20100

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Monday 4/20/2026 if shipped by air

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Estimated Ship Date: Monday 4/20/2026 if shipped by air