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 67

SPEC Tuned Billet 142-Tooth Flywheel SC22A

Flywheel, Tuned Billet, Billet Aluminum, SFI 1.1 Rating, 9.5 Lbs., Internal Balance, Chevy, Pontiac, Each

Part Number: SXC-SC22A

Not Yet Reviewed

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SCS Gearbox 10-Spline Professional Series Quick-Change Gears 22-PRO

SCS Gearbox 10-Spline Professional Series Quick-Change Gears 22-PRO

Quick Change Gears, Professional, 10-Spline, E 9310 Steel, Set 22, 19/25 Teeth, Set

Part Number: SGB-22-PRO

Not Yet Reviewed

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Shiftworks Shifter Conversion Kits for 1968-1970 CHEVELLE - SC2242

Shifter Conversion Kit, Chevy, Kit

Part Number: SIW-SC2242

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Today

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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 )

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Shiftworks Shifter Conversion Kits for 1968-1969 CAMARO - SC2244

Shifter Conversion Kit, Shifter Cable Bracket, Chevy, Kit

Part Number: SIW-SC2244

4.88 out of 5 stars ( 8 )

Estimated Ship Date: Today

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Shiftworks Shifter Conversion Kits for 1971-1972 CHEVELLE - SC2243

Shifter Conversion Kit, Shifter Cable Bracket, Chevy, Kit

Part Number: SIW-SC2243

5.0 out of 5 stars ( 5 )

Estimated Ship Date: Today

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Shiftworks Shifter Conversion Kits for 1968-1970 CHEVELLE, EL CAMINO, 1970 MONTE CARLO - SC2252

Shifter Conversion Kits, Automatic Transmission, Factory Style, Shifter Conversion, with Brackets, Indicator, Hardware, Chevy, GMC, Kit

Part Number: SIW-SC2252

Not Yet Reviewed

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Shiftworks Shifter Conversion Kits, Automatic Transmission SC2242-CS

SHIFTER CONVERSION

Part Number: SIW-SC2242-CS

Not Yet Reviewed

Estimated Ship Date: Aug 12, 2025 if ordered today

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Estimated Ship Date: Aug 12, 2025 if ordered today

Shiftworks Shifter Conversion Kits, Automatic Transmission SC2262-CS

Shifter Conversion 68-75 GTO 68-81 Firebird 73-77 Malibu 79-81 Camaro 4 Speed Master kit

Part Number: SIW-SC2262-CS

Not Yet Reviewed

Estimated Ship Date: Aug 12, 2025 if ordered today

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Estimated Ship Date: Aug 12, 2025 if ordered today

Shiftworks Shifter Conversion Kits for 1968-1969 CAMARO - SC2254

Shifter Conversion Kit, Automatic, Shifter Cable Bracket, Shifter Detent, GM 4L80-E/4L85-E, Chevrolet, Kit

Part Number: SIW-SC2254

Not Yet Reviewed

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Shiftworks Shifter Conversion Kits for 1968-1970 CHEVELLE - SC2242-R

Shifter Conversion Kit, Chevy, Kit

Part Number: SIW-SC2242-R

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

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Shiftworks Shifter Conversion Kits for 1970-1972 CAMARO - SC2245

Shifter Conversion Kit, Shifter Cable Bracket, Chevy, Kit

Part Number: SIW-SC2245

5.0 out of 5 stars ( 3 )

Estimated Ship Date: Today

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Shiftworks Shifter Conversion Kits, Automatic Transmission SC2262-05CS

Shifter Conversion 68-75 GTO 68-81 Firebird 73-77 Malibu 79-81 Camaro 4L80 Master kit

Part Number: SIW-SC2262-05CS

Not Yet Reviewed

Estimated Ship Date: Aug 12, 2025 if ordered today

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Estimated Ship Date: Aug 12, 2025 if ordered today

Shiftworks Shifter Conversion Kits, Automatic Transmission SC2254-CS

Shifter Conversion Kits 1968-1969 Chevrolet Camaro 4L80-E Master kit

Part Number: SIW-SC2254-CS

Not Yet Reviewed

Estimated Ship Date: Aug 12, 2025 if ordered today

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Estimated Ship Date: Aug 12, 2025 if ordered today

Shiftworks Shifter Conversion Kits for 1970-1972 CAMARO - SC2245-R

Shifter Conversion Kit, Chevy, Kit

Part Number: SIW-SC2245-R

Not Yet Reviewed

Estimated Ship Date: Aug 12, 2025 if ordered today

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Estimated Ship Date: Aug 12, 2025 if ordered today

Shiftworks Shifter Conversion Kits, Automatic Transmission SC2252-CS

Shifter Conversion Kits 1968-1970 Chevrolet Chevelle 4L80-E Master kit

Part Number: SIW-SC2252-CS

Not Yet Reviewed

Estimated Ship Date: Aug 12, 2025 if ordered today

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Estimated Ship Date: Aug 12, 2025 if ordered today

Shiftworks Shifter Conversion Kits, Automatic Transmission SC2244-CS

Shifter Conversion Kits 1968-1969 Chevrolet Camaro 4 Speed Master kit

Part Number: SIW-SC2244-CS

Not Yet Reviewed

Estimated Ship Date: Aug 12, 2025 if ordered today

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Estimated Ship Date: Aug 12, 2025 if ordered today

Shiftworks Shifter Conversion Kits for 1968-1969 CAMARO - SC2244-R

Shifter Conversion Kit, Chevy, Kit

Part Number: SIW-SC2244-R

Not Yet Reviewed

Estimated Ship Date: Aug 12, 2025 if ordered today

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Estimated Ship Date: Aug 12, 2025 if ordered today

Shiftworks Shifter Conversion Kits, Automatic Transmission SC2243-CS

Shifter Conversion Kits 1970-1972 Chevrolet Chevelle 4 Speed Master kit

Part Number: SIW-SC2243-CS

Not Yet Reviewed

Estimated Ship Date: Aug 12, 2025 if ordered today

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Estimated Ship Date: Aug 12, 2025 if ordered today

Shiftworks Shifter Conversion Kits, Automatic Transmission SC2255-CS

Shifter Conversion Kits 1970-1972 Chevrolet Camaro 4L80-E Master kit

Part Number: SIW-SC2255-CS

Not Yet Reviewed

Estimated Ship Date: Aug 12, 2025 if ordered today

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Estimated Ship Date: Aug 12, 2025 if ordered today

Shiftworks Slap Shift Shifter Conversions for 1970-1972 CAMARO - SC2255-R

CONVERISON RATCHET DETENT

Part Number: SIW-SC2255-R

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Aug 12, 2025 if ordered today

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Estimated Ship Date: Aug 12, 2025 if ordered today

Shiftworks Shifter Conversion Kits, Automatic Transmission SC2261-CS

Shifter Conversion Kits 1973- 1978 Camaro 4 Speed Master kit

Part Number: SIW-SC2261-CS

Not Yet Reviewed

Estimated Ship Date: Aug 12, 2025 if ordered today

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Estimated Ship Date: Aug 12, 2025 if ordered today

Shiftworks Shifter Conversion Kits for 1968-1969 IMPALA - SC225

Factory Shifter Conversion, 4L80-E, 4L85-E, Chevy, Kit

Part Number: SIW-SC225

Not Yet Reviewed

Estimated Ship Date: Aug 12, 2025 if ordered today

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Estimated Ship Date: Aug 12, 2025 if ordered today

Shiftworks Shifter Conversion Kits, Automatic Transmission SC2253-CS

Shifter Conversion Kits 1970-1972 Chevrolet Chevelle 4L80-E Master kit

Part Number: SIW-SC2253-CS

Not Yet Reviewed

Estimated Ship Date: Aug 12, 2025 if ordered today

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Estimated Ship Date: Aug 12, 2025 if ordered today

Shiftworks Slap Shift Shifter Conversions for 1971-1972 CHEVELLE - SC2253-R

Factory Shifter Conversion, 4L80-E, 4L85-E, Slap Shift, Chevy, Kit

Part Number: SIW-SC2253-R

Not Yet Reviewed

Estimated Ship Date: Aug 12, 2025 if ordered today

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