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

Part Groups

Results 1 - 25 of 383

TransGo Performance Shift Kits 700-2&3

Shift Kit, Automatic, Full Manual, GM, 700R4, Towing, Competition, Pro Sreet, Each

Part Number: TRG-700-2-3

4.32 out of 5 stars ( 25 )

Estimated Ship Date: Monday 10/13/2025

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Estimated Ship Date: Monday 10/13/2025

Summit Racing™ Automatic Transmission Servo Kits SUM-705415-K

Servo Piston Complete Drop in Assembly, Corvette Servo, 2nd/4th Gear , GM, 700R4, 4L60E, 4L65E, 4L70E, Complete drop in Kit

Part Number: SUM-705415-K

4.29 out of 5 stars ( 14 )

Estimated Ship Date: Monday 10/13/2025

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Estimated Ship Date: Monday 10/13/2025

TransGo Performance Shift Kits SK 700

Shift Kit, Shift Improvement, without Auxiliary Valve Body, GM, 700R4, 4L60, Each

Part Number: TRG-SK700

4.0 out of 5 stars ( 4 )

Estimated Ship Date: Monday 10/13/2025

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Estimated Ship Date: Monday 10/13/2025

TransGo Performance Shift Kits SK 700-JR

Shift Kit, Shift Improvement, with Auxiliary Valve Body, GM, 700R4, 4L60, Each

Part Number: TRG-SK700-JR

2.0 out of 5 stars ( 2 )

Estimated Ship Date: Monday 10/13/2025

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Estimated Ship Date: Monday 10/13/2025

B&M Shift Improver Kits 70239

Transmission Upgrade Kit, Shift Improver, GM, 700R4, 4L60, Each

Part Number: BMM-70239

4.65 out of 5 stars ( 20 )

Estimated Ship Date: Monday 10/13/2025

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Estimated Ship Date: Monday 10/13/2025

TCI Trans-Scat Valve Body Kits 376000

TCI Trans-Scat Valve Body Kits 376000

Transmission Upgrade Kit, Trans-Scat, Buick, Chevy, GMC, Oldsmobile, Pontiac, 700R4, Each

Part Number: TCI-376000

4.67 out of 5 stars ( 3 )

Estimated Ship Date: Monday 10/13/2025

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Estimated Ship Date: Monday 10/13/2025

TCI TH700-R4 Kickdown Kits 374400

Kickdown Kit, Aluminum, Natural, GM, Automatic, 700R4, 4L60, Kit

Part Number: TCI-374400

2.0 out of 5 stars ( 1 )

Estimated Ship Date: Nov 17, 2025 if ordered today

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Estimated Ship Date: Nov 17, 2025 if ordered today

B&M Transpak Kits 70235

Transmission Upgrade Kit, Transpak, GM, 700R4, 4L60, Each

Part Number: BMM-70235

4.88 out of 5 stars ( 8 )

Estimated Ship Date: Oct 27, 2025 if ordered today

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Estimated Ship Date: Oct 27, 2025 if ordered today

TCI Valve Body Performance Improver Transmission Upgrade Kits 376500

Transmission Upgrade Kit, Performance Improver, Chevy, 700R4, Kit

Part Number: TCI-376500

2.0 out of 5 stars ( 3 )

Estimated Ship Date: Nov 12, 2025 if ordered today

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Estimated Ship Date: Nov 12, 2025 if ordered today

J.W. Performance Transmissions Automatic Transmission Shift Kits 85019

700-R4 2 & 3 Reprogramming Kit

Part Number: JPT-85019

Not Yet Reviewed

Estimated Ship Date: Oct 23, 2025 if ordered today

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Estimated Ship Date: Oct 23, 2025 if ordered today

Lokar Floor Mount Cable Conversion Kits ATA-7002

Shifter Conversion Kits, Automatic, Floor Mount to Cable Actuated, 48.00 in. Cable Included, for Lokar Shifters, Chevy, GM, 700R4, 4L60, 200-4R, Kit

Part Number: LOK-ATA-7002

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Monday 10/13/2025

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Estimated Ship Date: Monday 10/13/2025

ATP Automatic Transmission Shift Improver Kits SK-3

ATP Automatic Transmission Upgrade Kit

Part Number: ATP-SK3

Not Yet Reviewed

Estimated Ship Date: Monday 10/13/2025

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Estimated Ship Date: Monday 10/13/2025

Shiftworks Shifter Conversion Kits for 1964-1967 CUTLASS - SC2322

Factory Shifter Conversion, 30 in. Cable, 4L70, 200-4R, 700-R4, Oldsmobile, Kit

Part Number: SIW-SC2322

Not Yet Reviewed

Estimated Ship Date: Monday 10/13/2025

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Estimated Ship Date: Monday 10/13/2025

Pioneer Automotive Automatic Transmission Shift Kits 765003

VALVE BODY KIT

Part Number: PIO-765003

Not Yet Reviewed

Estimated Ship Date: Oct 30, 2025 if ordered today

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Estimated Ship Date: Oct 30, 2025 if ordered today

Pioneer Automotive Automatic Transmission Shift Kits 765004

VALVE BODY KIT

Part Number: PIO-765004

Not Yet Reviewed

Estimated Ship Date: Oct 30, 2025 if ordered today

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Estimated Ship Date: Oct 30, 2025 if ordered today

RESTOPARTS Supplied Shifter Conversion Kits, Automatic Transmission SC231

Conversion Kit, Shifter, 1967-72 Cutlass, 700R4/200-4R/4L60

Part Number: OPG-SC231

Not Yet Reviewed

Estimated Ship Date: Nov 28, 2025 if ordered today

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Estimated Ship Date: Nov 28, 2025 if ordered today

RESTOPARTS Supplied Shifter Conversion Kits, Automatic Transmission G221529

Conversion Kit, His/Hers Shifter, 1967-68 GTO, 700R4/200-4R/4L60

Part Number: OPG-G221529

Not Yet Reviewed

Estimated Ship Date: Nov 28, 2025 if ordered today

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Estimated Ship Date: Nov 28, 2025 if ordered today

Shiftworks Shifter Conversion Kits for 1968-1969 IMPALA - SC224

Factory Shifter Conversion, 4L70, 200-4R, 700-R4, Chevy, Kit

Part Number: SIW-SC224

Not Yet Reviewed

Estimated Ship Date: Oct 13, 2025 if ordered today

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Estimated Ship Date: Oct 13, 2025 if ordered today

Shiftworks Shifter Conversion Kits for 1973-1977 CUTLASS - SC2352

Factory Shifter Conversion, 30 in. Cable, 4L70, 200-4R, 700-R4, Oldsmobile, Kit

Part Number: SIW-SC2352

Not Yet Reviewed

Estimated Ship Date: Oct 13, 2025 if ordered today

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Estimated Ship Date: Oct 13, 2025 if ordered today

Shiftworks Shifter Conversion Kits for 1968-1969 IMPALA - SC224-R

Factory Shifter Conversion, 4L70, 200-4R, 700-R4, Slap Shift, Chevy, Kit

Part Number: SIW-SC224-R

Not Yet Reviewed

Estimated Ship Date: Oct 13, 2025 if ordered today

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Estimated Ship Date: Oct 13, 2025 if ordered today

Pioneer Automotive Automatic Transmission Shift Kits 765010

VALVE BODY KIT

Part Number: PIO-765010

Not Yet Reviewed

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Pioneer Automotive Automatic Transmission Shift Kits 765007

VALVE BODY KIT

Part Number: PIO-765007

Not Yet Reviewed

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Pioneer Automotive Automatic Transmission Shift Kits 765005

VALVE BODY KIT

Part Number: PIO-765005

Not Yet Reviewed

Estimated Ship Date: Oct 30, 2025 if ordered today

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Estimated Ship Date: Oct 30, 2025 if ordered today

Shiftworks Shifter Conversion Kits SC2262

Shifter Conversion Kit, Shifter Cable Bracket, Chevy, Pontiac, Kit

Part Number: SIW-SC2262

4.69 out of 5 stars ( 13 )

Estimated Ship Date: Monday 10/13/2025

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Estimated Ship Date: Monday 10/13/2025

Shiftworks Shifter Conversion Kits for 1967-1972 CUTLASS - SC2312

Shifter Conversion Kits, Automatic Transmission, Oldsmobile, Kit

Part Number: SIW-SC2312

4.5 out of 5 stars ( 4 )

Estimated Ship Date: Monday 10/13/2025

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Estimated Ship Date: Monday 10/13/2025

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