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.

Individual Parts

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Results 1 - 25 of 162

Hooker Transmission Crossmember Extension Brackets BHS5182

Transmission Crossmember Extension Bracket, Bolt-on, Steel, Buick, Chevy, Oldsmobile, Pontiac, LS, 6L80, 6L90, 8L45, 8L80, 8L90, 10L80, 10L90, Each

Part Number: HOK-BHS5182

Not Yet Reviewed

Estimated Ship Date: Today

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Hooker Transmission Crossmember Extension Brackets BHS5181

Transmission Crossmember Extension Bracket, Bolt-on, Steel, Black, Buick, Chevy, GMC, Oldsmobile, Pontiac, LS, 10L80, 10L90, Each

Part Number: HOK-BHS5181

Not Yet Reviewed

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Hooker Transmission Crossmember Extension Brackets BHS5183

Transmission Crossmember Extension Bracket, Bolt-on, Steel, Black, Buick, Chevy, Oldsmobile, Pontiac, LS, TKX, Each

Part Number: HOK-BHS5183

Not Yet Reviewed

Estimated Ship Date: Feb 6, 2026 if ordered today

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Estimated Ship Date: Feb 6, 2026 if ordered today

Advance Adapters Jeep Crossmember Mount Kits for 1987-1995 WRANGLER - 716008

Advance Adapters Jeep Crossmember Mount Kits for 1987-1995 WRANGLER - 716008

Transfer Case Mounts, NP231, Universal, Pair

Part Number: ADD-716008

Not Yet Reviewed

Estimated Ship Date: Today

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Advance Adapters Jeep Crossmember Mount Kits for 1980-1983 CJ5, 1980-1986 CJ7 - 716021

Transfer Case Mount, Jeep CJ, Dana 300, Kit

Part Number: ADD-716021

Not Yet Reviewed

Estimated Ship Date: Mar 23, 2026 if ordered today

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Estimated Ship Date: Mar 23, 2026 if ordered today

Silver Sport EasyFit Tremec TKX Transmission Kits for 1968-1979 CORVETTE - EFKC3ETKX

Manual Transmission and Installation Kit Combo, EasyFit Tremec TKX, 5 Gears, 1.125 in. - 26-spline, 31-spline Output, Crossmember, Mount, Chevy, Kit

Part Number: IST-EFKC3ETKX

Not Yet Reviewed

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Silver Sport EasyFit Tremec TKX Transmission Kits for 1975-1981 CAMARO, FIREBIRD - EFKF2CLTKX

Manual Transmission and Installation Kit Combo, EasyFit Tremec TKX, 5 Gears, 1.125 in. - 26-spline, 31-spline Output, Crossmember, Chevy, Pontiac, Kit

Part Number: IST-EFKF2CLTKX

Not Yet Reviewed

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Silver Sport EasyFit Tremec TKX Transmission Kits for 1967-1969 CAMARO, FIREBIRD - EFKF1TKX

Manual Transmission and Installation Kit Combo, EasyFit Tremec TKX, 5 Gears, 1.125 in. - 26-spline, 31-spline Output, Crossmember, Chevy, Pontiac, Kit

Part Number: IST-EFKF1TKX

2.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

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Silver Sport EasyFit Tremec TKX Transmission Kits for 1967-1970 MUSTANG - EFKM23TKX

Manual Transmission and Installation Kit Combo, EasyFit Tremec TKX, 5 Gears, 1.125 in. - 26-spline, 31-spline Output, Crossmember, Mount, Ford, Kit

Part Number: IST-EFKM23TKX

Not Yet Reviewed

Estimated Ship Date: Today

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Silver Sport EasyFit Tremec TKX Transmission Kits for 1965-1966 MUSTANG - EFKM1TKX

Manual Transmission and Installation Kit Combo, EasyFit Tremec TKX, 5 Gears, 1.125 in. - 26-spline, 31-spline Output, Crossmember, Mount, Ford, Kit

Part Number: IST-EFKM1TKX

Not Yet Reviewed

Estimated Ship Date: Today

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Silver Sport EasyFit Tremec TKX Transmission Kits for 1963-1972 C10 PICKUP - EFKC10TKX

Manual Transmission and Installation Kit Combo, EasyFit Tremec TKX, 5 Gears, 1.125 in. - 26-spline, 31-spline Output, Crossmember, Mount, Chevy, Kit

Part Number: IST-EFKC10TKX

Not Yet Reviewed

Estimated Ship Date: Today

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California Pony Cars T-5 Conversion Installation Kits for 1964-1966 MUSTANG - TRA-656-532

Manual Transmission Installation Kit, T-5 Conversion, Crossmember Included, Yoke Included, Ford, Mustang, Kit

Part Number: CPO-TRA-656-532

2.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

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American Powertrain ProFit Tremec TKX Manual Transmission and Installation Kits COCH-B1EX

Manual Transmission and Installation Kit Combos, ProFit Tremec TKX Manual Tansmission, 5 Gears, 1.387 in. 26-spline Input, Crossmember, Chevrolet, Kit

Part Number: AWR-COCH-B1EX

Not Yet Reviewed

Estimated Ship Date: Mar 26, 2026 if ordered today

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Estimated Ship Date: Mar 26, 2026 if ordered today

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Silver Sport EasyFit Tremec TKX Transmission Kits for 1963-1967 CORVETTE - EFKC2TKX

Manual Transmission and Installation Kit Combo, EasyFit Tremec TKX, 5 Gears, 1.125 in. - 26-spline, 31-spline Output, Crossmember, Mount, Chevy, Kit

Part Number: IST-EFKC2TKX

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Feb 23, 2026 if ordered today

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Estimated Ship Date: Feb 23, 2026 if ordered today

California Pony Cars T-5 Conversion Installation Kits for 1967-1970 MUSTANG - TRA-670-534

Manual Transmission Installation Kit, T-5 Conversion, Crossmember Included, Yoke Included, Ford, Mustang, Kit

Part Number: CPO-TRA-670-534

Not Yet Reviewed

Estimated Ship Date: Feb 2, 2026 if ordered today

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Estimated Ship Date: Feb 2, 2026 if ordered today

Bowler Performance Transmissions Manual Transmissions TUKT12021

MAGNUM XL FORD 6SPEED KIT FOR 2005-2014 MUSTANGS INCLUDES STEEL BELLHOUSING, CROSSMEMBER AND MOUNT

Part Number: BTM-TUKT12021

Not Yet Reviewed

Estimated Ship Date: Feb 16, 2026 if ordered today

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Estimated Ship Date: Feb 16, 2026 if ordered today

Bowler Performance Transmissions Manual Transmissions TUKT16901

MAGNUM XL FORD 6SPEED KIT FOR 2005-2014 MUSTANGS INCLUDES STEEL BELLHOUSING, CROSSMEMBER AND MOUNT

Part Number: BTM-TUKT16901

Not Yet Reviewed

Estimated Ship Date: Feb 16, 2026 if ordered today

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Estimated Ship Date: Feb 16, 2026 if ordered today

Bowler Performance Transmissions Manual Transmissions TUKT12019

MAGNUM XL FORD 6SPEED KIT FOR 2005-2014 MUSTANGS INCLUDES STEEL BELLHOUSING, CROSSMEMBER AND MOUNT

Part Number: BTM-TUKT12019

Not Yet Reviewed

Estimated Ship Date: Feb 16, 2026 if ordered today

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Estimated Ship Date: Feb 16, 2026 if ordered today

Mopar Replacement Differential Carrier Replacement Parts MB303651

COLLAR, FRONT AXLE CROSSMEMBER, 1989-2012

Part Number: MOP-MB303651

Not Yet Reviewed

Estimated Ship Date: Mar 4, 2026 if ordered today

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Estimated Ship Date: Mar 4, 2026 if ordered today

Mopar Performance Automatic Transmission Rebuild Components 04578782AB

TRANSMISSION CROSSMEMBER

Part Number: DCC-04578782AB

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

Silver Sport EasyFit Tremec TKX Transmission Kits for 1968-1972 CHEVELLE - EFKA2TKX

Silver Sport EasyFit TREMEC TKX Install Kit ONLY 68-72 GM Chevelle / Malibu

Part Number: IST-EFKA2TKX

Not Yet Reviewed

Estimated Ship Date: Today

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Silver Sport EasyFit Tremec TKX Transmission Kits EFKA1TKX

Manual Transmission and Installation Kit Combo, EasyFit Tremec TKX, 5 Gears, 1.125 in. - 26-spline, 31-spline Output, Mount, Buick, Chevy, Olds, Kit

Part Number: IST-EFKA1TKX

Not Yet Reviewed

Estimated Ship Date: Today

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Advance Adapters Jeep AX15 Transmission Bellhousing Adapters for 1989-1993 CHEROKEE, WRANGLER, 1989-1992 COMANCHE - 712590-IR

Bellhousing, External Hydraulic Upgrade, Release Bearing and Lever, Slave Cylinder, Bearing Retainer, Hardware, Jeep, AX15, Kit

Part Number: ADD-712590-IR

3.6 out of 5 stars ( 5 )

Estimated Ship Date: Today

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Estimated Ship Date: Today

Advance Adapters Mopar NV4500 Transmission Bell Housing Adapters for 1994-2003 RAM 2500, RAM 3500 - 712586A

Bellhousing Adapter, Aluminum, Natural, Mopar NV4500, Dodge, 5.9L Diesel, Kit

Part Number: ADD-712586A

4.25 out of 5 stars ( 4 )

Estimated Ship Date: Today

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Silver Sport EasyFit Tremec TKX Transmission Kits EFKMETKX

Silver Sport EasyFit TREMEC TKX Install Kit Mopar 70-74 E-Body, 71-74 B-Body

Part Number: IST-EFKMETKX

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Mar 3, 2026 if ordered today

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Estimated Ship Date: Mar 3, 2026 if ordered today

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