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Transmission & Drivetrain

Performance & Replacement Transmission & Drivetrain Parts

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Performance & Replacement Transmission & Drivetrain Parts

Building awesome horsepower is only part of the story. You need to deliver all that power to your car or truck’s wheels! We’ve got torque-hungry high performance automatic...

Building awesome horsepower is only part of the story. You need to deliver all that power to your car or truck’s wheels! We’ve got torque-hungry high performance automatic and manual transmissions for street and strip applications, torque converters and clutch sets, flexplates and flywheels, plus limited-slip differentials, spools, lockers, ring and pinion sets, driveshafts, U-joints, axles, bearings, C-clip eliminator kits, transfer cases, shift kits, and rebuild kits. We also have a wide selection of trans-brakes, shifters, cables, and accessories—everything you need to put the power to the ground, Summit style.

Building awesome horsepower is only part of the story. You need to deliver all that power to your car or truck’s wheels! We’ve got torque-hungry high performance automatic and manual transmissions for street and strip applications, torque converters and clutch sets, flexplates and flywheels, plus limited-slip differentials, spools, lockers, ring and pinion sets, driveshafts, U-joints, axles, bearings, C-clip eliminator kits, transfer cases, shift kits, and rebuild kits. We also have a wide selection of trans-brakes, shifters, cables, and accessories—everything you need to put the power to the ground, Summit style.

Individual Parts

Results 1 - 25 of 57

Trailer Wheel Bearing Grease Seal

Part Number: CHT-333954

Not Yet Reviewed

Estimated Ship Date: May 1, 2026 if ordered today

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Estimated Ship Date: May 1, 2026 if ordered today

Axle Shaft Bearing

Part Number: CHT-333950

Not Yet Reviewed

Estimated Ship Date: May 4, 2026 if ordered today

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Estimated Ship Date: May 4, 2026 if ordered today

Trailer Wheel Bearing Grease Seal

Part Number: CHT-333957

Not Yet Reviewed

Estimated Ship Date: May 1, 2026 if ordered today

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Estimated Ship Date: May 1, 2026 if ordered today

Axle Shaft Bearing

Part Number: CHT-333951

Not Yet Reviewed

Estimated Ship Date: May 4, 2026 if ordered today

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Estimated Ship Date: May 4, 2026 if ordered today

8" TOYOTA STD S/G T/W

Part Number: YGA-33395

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

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: Today

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Estimated Ship Date: Today

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

Differential Carrier Rebuild Kits and Spider Gears, Open Differential Internal Kits, GM 9.25/9.25 IFS/9.5 in., 33-spline, 14-bolt, Chevy, Dodge, Kit

Part Number: MGR-GM95BI

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

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Estimated Ship Date: Today

Axle Shaft, Front Inner, 1541H, 33 Spline, GM 9.25 in. IFS, Each

Part Number: YGA-21590

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

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 )

Estimated Ship Date: Today

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Estimated Ship Date: Today

Gear, Ring and Pinion, 3.73:1 Ratio, GM, 9.5 in., 14-Bolt, 1997-2013, With 33 Spline C-clip Axles, Set

Part Number: YGA-24166

1.0 out of 5 stars ( 1 )

Estimated Ship Date: May 19, 2026 if ordered today

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Estimated Ship Date: May 19, 2026 if ordered today

Axle Shaft, OEM Replacement, C-clip, 1541H Alloy Steel, 33-spline Inner, 33.125 in. Length, Each

Part Number: MGR-15521928

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Today

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Estimated Ship Date: Today

Direct Fit Axle Shafts, Rear, Right or Left, 33-Spline, Steel, 32.75 in. Length, 8-Lug, Chevrolet, GMC, GM 9.5 in., Each

Part Number: YGA-21252

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

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Estimated Ship Date: Today

USA Standard Gear standard spider gear set for GM 9.5", 33 spline

Part Number: SPZ-39029

Not Yet Reviewed

Estimated Ship Date: May 4, 2026 if ordered today

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Estimated Ship Date: May 4, 2026 if ordered today

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

Part Number: YGA-20097

Not Yet Reviewed

Estimated Ship Date: May 19, 2026 if ordered today

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Estimated Ship Date: May 19, 2026 if ordered today

Differential Carriers, Grip Pro Traction System, 33 Spline, 9.5 in. GM, Each

Part Number: PWT-GT209533

Not Yet Reviewed

Estimated Ship Date: Jun 4, 2026 if ordered today

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Estimated Ship Date: Jun 4, 2026 if ordered today

Axle Shaft, OEM Replacement, 33-Spline, 33.125 in. Length, Chevy, GMC, 9.5 in., Rear, Each

Part Number: RMG-92-25148

5.0 out of 5 stars ( 1 )

Estimated Ship Date: May 7, 2026 if ordered today

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Estimated Ship Date: May 7, 2026 if ordered today

Axle Shaft, Rear, C-clip, 33-spline, 1541H Alloy Steel, 33.250 in. Length, Chevy, GMC, Hummer, GM 9.5 in.,Each

Part Number: YGA-21425

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

Differential Inner Gear Kit; GM 9.5 - 33 Spline, Open Diff

Part Number: SVL-2023880

Not Yet Reviewed

Estimated Ship Date: Apr 29, 2026 if ordered today

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Estimated Ship Date: Apr 29, 2026 if ordered today

Spider Gears, Side Gears, Cross Shaft Pin, Eaton Posi Carrier Style, Rear, GM 9.5 in., 33-spline, Kit

Part Number: YGA-16057

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

9.5" GM DURA GRIP_ONLY!!, POSI SPIDER SET (No_clutches)

Part Number: YGA-16166

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

SPIDER GEARS, spider gear set.

Part Number: YGA-16183

Not Yet Reviewed

Estimated Ship Date: May 19, 2026 if ordered today

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Estimated Ship Date: May 19, 2026 if ordered today

Axle Shaft, OEM Replacement, 33-Spline, 31.813 in. Length, Chevy, GMC, 9.5 in., Rear, Each

Part Number: RMG-92-25138

Not Yet Reviewed

Estimated Ship Date: May 6, 2026 if ordered today

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Estimated Ship Date: May 6, 2026 if ordered today

Axle Shaft, 33-Spline, 32.0 in. Length, Chevy, GMC, Rear, Each

Part Number: YGA-21260

5.0 out of 5 stars ( 1 )

Estimated Ship Date: May 19, 2026 if ordered today

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Estimated Ship Date: May 19, 2026 if ordered today

Axle Shafts Direct Fit, 12T & 8.5" VANAxle,2WD-30spl,5 LUG,33-3/8",C10&1559 COMPLETEAxle PACKAGE

Part Number: SPZ-35186

Not Yet Reviewed

Estimated Ship Date: May 4, 2026 if ordered today

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Estimated Ship Date: May 4, 2026 if ordered today