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.

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Results 1 - 25 of 415

PEM Racing Quick-Change Rear-End Ring and Pinion Gears QC411R&PLOADED Quick-Change 4.11 Gears

Gear, Ring and Pinion, 4.11:1 Ratio, Quick-Change, Loaded, Head Bearing, Tail Bearing, Posi Nut, Roller Nose Bearing, Each

Part Number: PE2-S0189

Not Yet Reviewed

Estimated Ship Date: Monday 3/16/2026 if shipped by air

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Estimated Ship Date: Monday 3/16/2026 if shipped by air

PEM Racing Quick-Change Rear-End Ring and Pinion Gears QC486R&PLOADED Quick-Change 4.86 Gears

Gear, Ring and Pinion, 4.86:1 Ratio, Quick-Change, Loaded, Head Bearing, Tail Bearing, Posi Nut, Roller Nose Bearing, Each

Part Number: PE2-S0191

Not Yet Reviewed

Estimated Ship Date: Monday 3/16/2026 if shipped by air

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Estimated Ship Date: Monday 3/16/2026 if shipped by air

PEM Racing Quick-Change Rear-End Ring and Pinion Gears QC411R&P Quick-Change 4.11 Gears

Gear, Ring and Pinion, 4.11:1 Ratio, Quick-Change, Each

Part Number: PE2-QC411RP

Not Yet Reviewed

Estimated Ship Date: Monday 3/16/2026 if shipped by air

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Estimated Ship Date: Monday 3/16/2026 if shipped by air

PEM Racing Quick-Change Rear-End Ring and Pinion Gears QC486R&P Quick-Change 4.86 Gears

Gear, Ring and Pinion, 4.86:1 Ratio, Quick-Change, Each

Part Number: PE2-QC486RP

Not Yet Reviewed

Estimated Ship Date: Monday 3/16/2026 if shipped by air

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Estimated Ship Date: Monday 3/16/2026 if shipped by air

Trail-Gear Rear Axle Bearing Pockets for 1985-1995 4RUNNER, 1979-1995 PICKUP - 140194-1-KIT

Axle Housing Ends, Rear Axle Bearing Pockets, Forged Steel, Natural, 8 in. Toyota, Each

Part Number: TGI-140194-1-KIT

3.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 3/16/2026 if shipped by air

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Estimated Ship Date: Monday 3/16/2026 if shipped by air

Winters 10-Spline Quick-Change Gears 8554

Quick Change Gears, 10-Spline, SAE 8620 Steel, Set 54, 19/35 Teeth, for Winters 10-Spline Quick-Change Rear Ends, Set

Part Number: WPP-8554

Not Yet Reviewed

Estimated Ship Date: Monday 3/16/2026 if shipped by air

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Estimated Ship Date: Monday 3/16/2026 if shipped by air

Currie 9 in. Crate Rear End Assemblies for 1970-1972 C10 PICKUP, C15/C1500 PICKUP - CR-GC537TNBB

70-Late -72 Chevy C10, 5-Lug, 9-Inch Crate, Black PC, 31-Spline Axle, 3.70 Ratio, Helical Worm Gear Differential, Brakes Not Included

Part Number: CUR-CR-GC537TNBB

Not Yet Reviewed

Estimated Ship Date: Apr 16, 2026 if ordered today

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Estimated Ship Date: Apr 16, 2026 if ordered today

Currie 9 in. Crate Rear End Assemblies CR-GB237TNBB

59-64 GM B-Body 9-Inch Crate, Black PC, 31-Spline Axle, 3.70 Ratio, Helical Worm Gear Differential, Brakes Not Included

Part Number: CUR-CR-GB237TNBB

Not Yet Reviewed

Estimated Ship Date: Apr 16, 2026 if ordered today

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Estimated Ship Date: Apr 16, 2026 if ordered today

Currie 9 in. Crate Rear End Assemblies CR-GC737TNBB

73-87 Chevy C10, 5-Lug, 9-Inch Crate, Black PC, 31-Spline Axle, 3.70 Ratio, Helical Worm Gear Differential, Brakes Not Included

Part Number: CUR-CR-GC737TNBB

Not Yet Reviewed

Estimated Ship Date: Apr 16, 2026 if ordered today

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Estimated Ship Date: Apr 16, 2026 if ordered today

Currie 9 in. Crate Rear End Assemblies for 1970-1981 CAMARO, FIREBIRD - CR-GF337TNBB

70-81 GM Camaro/Firebird 9-Inch Crate, Black PC, 31-Spline Axle, 3.70 Ratio, Helical Worm Gear Differential, No Brakes

Part Number: CUR-CR-GF337TNBB

Not Yet Reviewed

Estimated Ship Date: Apr 16, 2026 if ordered today

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Estimated Ship Date: Apr 16, 2026 if ordered today

Currie 9 in. Crate Rear End Assemblies for 1967-1969 CAMARO, FIREBIRD - CR-GF237TNBB

67-69 GM Camaro/Firebird 9-Inch Crate, Black PC, Multi-Leaf, 31-Spline Axle, 3.70 Ratio, Helical Worm Gear Differential, Brakes Not Included

Part Number: CUR-CR-GF237TNBB

Not Yet Reviewed

Estimated Ship Date: Apr 16, 2026 if ordered today

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Estimated Ship Date: Apr 16, 2026 if ordered today

Currie 9 in. Crate Rear End Assemblies CR-GC737TWAB

Crate Axle, 73-87 Chevy C10 Centurion 9-Inch, 5-Lug, Black PC, 31-Spline, 3.70 Ratio, Currie Twin Track, Wilwood 11" Dynapro Black Calipers

Part Number: CUR-CR-GC737TWAB

Not Yet Reviewed

Estimated Ship Date: Apr 16, 2026 if ordered today

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Estimated Ship Date: Apr 16, 2026 if ordered today

Currie 9 in. Crate Rear End Assemblies CR-GB135TEBB

Crate Axle, 55-57 GM B-Body Centurion 9-Inch, Black PC, 31-Spline, 3.50 Ratio, Currie Twin Track, 11" Explorer Disc

Part Number: CUR-CR-GB135TEBB

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 3/16/2026 if shipped by air

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Estimated Ship Date: Monday 3/16/2026 if shipped by air

Currie 9 in. Crate Rear End Assemblies for 1970-1981 CAMARO, FIREBIRD - CR-GF335TNBB

70-81 GM Camaro/Firebird 9-Inch Crate, Black PC, 31-Spline Axle, 3.50 Ratio, Helical Worm Gear Differential, No Brakes

Part Number: CUR-CR-GF335TNBB

Not Yet Reviewed

Estimated Ship Date: Apr 16, 2026 if ordered today

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Estimated Ship Date: Apr 16, 2026 if ordered today

Trail-Gear Axle Housing End Flanges 306106-KIT

Axle Housing Ends, 3.5 OD Axle End Flanges 79-96 3/8" Wall Pair

Part Number: TGI-306106-KIT

Not Yet Reviewed

Estimated Ship Date: Monday 3/16/2026 if shipped by air

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Estimated Ship Date: Monday 3/16/2026 if shipped by air

Trail-Gear Axle Housing End Flanges 306110-KIT

Axle Housing Ends, 3.5 OD Axle End Flanges 05-15 3/8" Wall Pair

Part Number: TGI-306110-KIT

Not Yet Reviewed

Estimated Ship Date: Apr 17, 2026 if ordered today

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Estimated Ship Date: Apr 17, 2026 if ordered today

WEHRS Tranny And Rear End Breather Fittings WM128B

Transmission and Rear End Vent, -4 AN to 1/2 in. Barb, Includes Breather Filter, Each

Part Number: WEH-WM128B

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 3/16/2026 if shipped by air

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Estimated Ship Date: Monday 3/16/2026 if shipped by air

Currie 9 in. Crate Rear End Assemblies for 1967-1970 C15/C1500 PICKUP, C10 PICKUP, 1963-1967 C10 PANEL - CR-GC337TWAB

Crate Axle, 63-70-Early Chevy C10 Centurion 9-Inch, 5-Lug, Black PC, 31-Spline, 3.70 Ratio, Helical Limited Slip, Wilwood 11" Dynapro Black Calipers

Part Number: CUR-CR-GC337TWAB

Not Yet Reviewed

Estimated Ship Date: Apr 16, 2026 if ordered today

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Estimated Ship Date: Apr 16, 2026 if ordered today

Currie 9 in. Crate Rear End Assemblies for 1968-1969 CAMARO, FIREBIRD - CR-GF241TESB

Crate Axle, 68-69 GM Camaro/F-Body Centurion 9-Inch, Black PC, Multi-Leaf, 31-Spline, 4.11 Ratio, Helical Limited Slip, 11" Explorer Disc Staggered

Part Number: CUR-CR-GF241TESB

Not Yet Reviewed

Estimated Ship Date: Apr 16, 2026 if ordered today

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Estimated Ship Date: Apr 16, 2026 if ordered today

Currie 9 in. Crate Rear End Assemblies CR-GC741TWAB

Crate Axle, 73-87 Chevy C10 Centurion 9-Inch, 5-Lug, Black PC, 31-Spline, 4.11 Ratio, Currie Twin Track, Wilwood 11" Dynapro Black Calipers

Part Number: CUR-CR-GC741TWAB

Not Yet Reviewed

Estimated Ship Date: Monday 3/16/2026 if shipped by air

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Estimated Ship Date: Monday 3/16/2026 if shipped by air

Currie 9 in. Crate Rear End Assemblies CR-GB141TEBB

Crate Axle, 55-57 GM B-Body Centurion 9-Inch, Black PC, 31-Spline, 4.11 Ratio, Helical Limited Slip, 11" Explorer Disc

Part Number: CUR-CR-GB141TEBB

Not Yet Reviewed

Estimated Ship Date: Apr 16, 2026 if ordered today

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Estimated Ship Date: Apr 16, 2026 if ordered today

Currie 9 in. Crate Rear End Assemblies CR-GC741TEBB

Crate Axle, 73-87 Chevy C10 Centurion 9-Inch, 5-Lug, Black PC, 31-Spline, 4.11 Ratio, Helical Limited Slip, 11" Explorer Disc

Part Number: CUR-CR-GC741TEBB

Not Yet Reviewed

Estimated Ship Date: Apr 16, 2026 if ordered today

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Estimated Ship Date: Apr 16, 2026 if ordered today

PEM Racing Quick-Change Rear End Yokes QCC0090

Quick Change Yoke, Cast Steel, 1310 U-Joint, 10-Spline, Each

Part Number: PE2-QCC0090

Not Yet Reviewed

Estimated Ship Date: Monday 3/16/2026 if shipped by air

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Estimated Ship Date: Monday 3/16/2026 if shipped by air

Currie 9 in. Crate Rear End Assemblies CR-GC737TEBB

Crate Axle, 73-87 Chevy C10 Centurion 9-Inch, 5-Lug, Black PC, 31-Spline, 3.70 Ratio, Helical Limited Slip, 11" Explorer Disc

Part Number: CUR-CR-GC737TEBB

Not Yet Reviewed

Estimated Ship Date: Apr 16, 2026 if ordered today

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Estimated Ship Date: Apr 16, 2026 if ordered today

Currie 9 in. Crate Rear End Assemblies CR-GB337TEBB

Crate Axle, 65-70 GM B-Body Centurion 9-Inch, Black PC, 31-Spline, 3.70 Ratio, Helical Limited Slip, 11" Explorer Disc

Part Number: CUR-CR-GB337TEBB

Not Yet Reviewed

Estimated Ship Date: Monday 3/16/2026 if shipped by air

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Estimated Ship Date: Monday 3/16/2026 if shipped by air

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