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 457

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: Today

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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: Today

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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: Today

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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

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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: Today

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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

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CA Differential Carrier Rebuild Kits and Spider Gears 30959

1963-1979 Chevrolet Corvette Rear End Bearing & Seal Rebuild Kit.

Part Number: MMU-30959

Not Yet Reviewed

Estimated Ship Date: Mar 3, 2026 if ordered today

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Estimated Ship Date: Mar 3, 2026 if ordered today

Currie 9 in. Crate Rear End Assemblies CR-GG141TNBB

78-88 GM G-Body 9-Inch Crate, Black PC, 31-Spline Axle, 4.11 Ratio, Helical Worm Gear Differential, Brakes Not Included

Part Number: CUR-CR-GG141TNBB

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

Currie 9 in. Crate Rear End Assemblies CR-GA135TNBB

64-66 GM A-Body 9-Inch Crate, Black PC, 31-Spline Axle, 3.50 Ratio, Helical Worm Gear Differential, Brakes Not Included

Part Number: CUR-CR-GA135TNBB

Not Yet Reviewed

Estimated Ship Date: Feb 12, 2026 if ordered today

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Estimated Ship Date: Feb 12, 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: Feb 9, 2026 if ordered today

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Estimated Ship Date: Feb 9, 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: Feb 9, 2026 if ordered today

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Estimated Ship Date: Feb 9, 2026 if ordered today

Currie 9 in. Crate Rear End Assemblies CR-GG137TNBB

78-88 GM G-Body 9-Inch Crate, Black PC, 31-Spline Axle, 3.70 Ratio, Helical Worm Gear Differential, Brakes Not Included

Part Number: CUR-CR-GG137TNBB

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

Currie 9 in. Crate Rear End Assemblies CR-GA137TNBB

64-66 GM A-Body 9-Inch Crate, Black PC, 31-Spline Axle, 3.70 Ratio, Helical Worm Gear Differential, Brakes Not Included

Part Number: CUR-CR-GA137TNBB

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

Currie 9 in. Crate Rear End Assemblies CR-GA235TNBB

68-72 GM A-Body 9-Inch Crate, Black PC, 31-Spline Axle, 3.50 Ratio, Helical Worm Gear Differential, Brakes Not Included

Part Number: CUR-CR-GA235TNBB

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

Currie 9 in. Crate Rear End Assemblies for 1964-1966 MUSTANG - CR-FM130TNBB

64-66 Mustang, 9-Inch Crate, Black PC, 31-Spline Axle, 3.00 Ratio, Helical Worm Gear Differential, Brakes Not Included

Part Number: CUR-CR-FM130TNBB

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

Currie 9 in. Crate Rear End Assemblies for 1964-1966 MUSTANG - CR-FM135TNBB

64-66 Mustang, 9-Inch Crate, Black PC, 31-Spline Axle, 3.50 Ratio, Helical Worm Gear Differential, Brakes Not Included

Part Number: CUR-CR-FM135TNBB

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

Currie 9 in. Crate Rear End Assemblies for 1967-1970 MUSTANG - CR-FM241TNBB

67-70 Mustang, 9-Inch Crate, Black PC, 31-Spline Axle, 4.11 Ratio, Helical Worm Gear Differential, Brakes Not Included

Part Number: CUR-CR-FM241TNBB

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

Currie 9 in. Crate Rear End Assemblies CR-GB235TNBB

59-64 GM B-Body 9-Inch Crate, Black PC, 31-Spline Axle, 3.50 Ratio, Helical Worm Gear Differential, Brakes Not Included

Part Number: CUR-CR-GB235TNBB

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

Currie 9 in. Crate Rear End Assemblies for 1967-1970 C15/C1500 PICKUP, C10 PICKUP, 1963-1967 C10 PANEL - CR-GC337TNBB

63-70-Early 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-GC337TNBB

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

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: Feb 9, 2026 if ordered today

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Estimated Ship Date: Feb 9, 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: Feb 9, 2026 if ordered today

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Estimated Ship Date: Feb 9, 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: Feb 9, 2026 if ordered today

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Estimated Ship Date: Feb 9, 2026 if ordered today

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: Feb 9, 2026 if ordered today

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Estimated Ship Date: Feb 9, 2026 if ordered today

Currie 9 in. Crate Rear End Assemblies for 1970-1981 CAMARO, FIREBIRD - CR-GF341TNBB

70-81 GM Camaro/Firebird 9-Inch Crate, Black PC, 31-Spline Axle, 4.11 Ratio, Helical Worm Gear Differential, No Brakes

Part Number: CUR-CR-GF341TNBB

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

Currie 9 in. Crate Rear End Assemblies for 1967-1969 CAMARO, FIREBIRD - CR-GF637TNBB

67-69 GM Cam/Fire, 9-Inch Crate, Black PC, RideTech Brkts, Mini-Tub, 31-Spline Axle, 3.70 Ratio, Helical Worm Gear Differential, Brakes Not Included

Part Number: CUR-CR-GF637TNBB

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

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