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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.
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.
Showing In Stock Items. Show All 535 Items.
Manual Shifter, Mastershift, Buick, Chevy, Oldsmobile, Pontiac, Each
Part Number: HUU-3667271
Estimated Ship Date: Today
Estimated Ship Date: Today
Torque Converters, Twister 3/4 Race, 1.703 in. Crank Pilot Diameter, 30-spline, 9.600 in. Diameter, TH350, 2,400 rpm Advertised Flash Stall, Each
Part Number: HAY-97-1B24Q
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Torque Converters, Twister 3/4 Race, Street/Strip, 2,800-3,200 rpm Stall Speed Range, 30-spline, 9.600 in. Diameter, Chevy THM400, Buick, Chevy, Each
Part Number: HAY-97-1D28Q
Not Yet Reviewed
Estimated Ship Date: May 4, 2026 if ordered today
Estimated Ship Date: May 4, 2026 if ordered today
Torque Converters, Twister 3/4 Race, 1.703 in. Crank Pilot Diameter, 30-spline, 9.600 in. Diameter, TH350, 2,800 rpm Advertised Flash Stall, Each
Part Number: HAY-97-1B28Q
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Dura Grip Positraction Carrier, Traction-Loc, GM 8.5 in., 28 Spline, 2.73 Up Ratio, Each
Part Number: YGA-26015
Estimated Ship Date: Today
Estimated Ship Date: Today
Dura Grip Positraction Carrier, Traction-Loc, GM 8.5 Oldsmobile Axle, 28 Spline, 3 Series Carrier, Each
Part Number: YGA-10301
Estimated Ship Date: Today
Estimated Ship Date: Today
Gear, Ring and Pinion, 3.55:1 Ratio, GM, 12-Bolt Car, 3 Series, Set
Part Number: RMG-4900951
Estimated Ship Date: Today
Estimated Ship Date: Today
Gear, Ring and Pinion, 4.10:1 Ratio, GM, 8.5/8.6 in., 10-Bolt, 3 Series, Set
Part Number: RMG-6901651
Estimated Ship Date: Today
Estimated Ship Date: Today
Pressure Plate Bolts, Hex Head, 3/8-16 in. Thread Size, Steel, Black, 1.000 in. UHL, Chevy, Chrysler, Dodge, Ford, Olds, Plymouth, Pontiac, Set of 6
Part Number: PIO-859024
Estimated Ship Date: Today
Estimated Ship Date: Today
Universal Joint, Mechanics 3/Saginaw 44/American Axle 1344 to 1330 Conversion, Greasable, Steel, Each
Part Number: MOG-355
Estimated Ship Date: Today
Estimated Ship Date: Today
Automatic Transmission Bushings, Extension Housing, GM Transmission, Each
Part Number: DUR-GMT-3-2TG
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Torque Converters, Twister 3/4 Race, Street/Strip, 2,800-3,200 rpm Stall Speed Range, 30-spline, 9.600 in. Diameter, THM350C, Chevy, Each
Part Number: HAY-97-1C28Q
Estimated Ship Date: May 4, 2026 if ordered today
Estimated Ship Date: May 4, 2026 if ordered today
Manual Shifter, Indy 3-Speed, GM/Ford/Mopar, Each
Part Number: HUU-5010002
Estimated Ship Date: Today
Estimated Ship Date: Today
Torque Converters, Twister 3/4 Race, 1.703 in. Crank Pilot Diameter, 30-spline, 9.600 in. Diameter, 2,400 rpm Advertised Flash Stall, TH400, Each
Part Number: HAY-97-1D24Q
Not Yet Reviewed
Estimated Ship Date: May 4, 2026 if ordered today
Estimated Ship Date: May 4, 2026 if ordered today
Dura Grip Positraction Carrier, Traction-Loc, GM 8.5/8.6 in., 30 Spline, 2.73 Up Ratio, Each
Part Number: YGA-26016
Estimated Ship Date: Today
Estimated Ship Date: Today
Ring and Pinion Gears, 3.73:1 Ratio, GM, 12-Bolt Passenger Car, 3 Series, Set
Part Number: RMG-4900391
Estimated Ship Date: Today
Estimated Ship Date: Today
Dura Grip Positraction Carrier, Traction-Loc, GM 8.2 in. BOP, 28 Spline, 3.31 Up Ratio, Each
Part Number: YGA-26024
Estimated Ship Date: Today
Estimated Ship Date: Today
Shifter, Automatic Transmission, Pro Ratchet, 3-, or 4-Speed, Forward or Reverse Pattern, Aluminum Cover, Ford, GM, Lincoln, Mercury, Mopar, Each
Part Number: BMM-80842
Estimated Ship Date: Today
Estimated Ship Date: Today
Differential, Posi Performance, Limited Slip, 28-Spline, GM, 8.5 in., 3 Series, Each
Part Number: ETN-19557-010
Estimated Ship Date: Today
Estimated Ship Date: Today
Gear, Ring and Pinion, 3.42:1 Ratio, GM, 12-Bolt Car, 3 Series, Set
Part Number: RMG-4901131
Estimated Ship Date: Today
Estimated Ship Date: Today
Bolts, Pressure Plate, Steel, Black Oxide, 3/8-16 in. Chevy, Mopar, 1955-1985, V8, Set of 6
Part Number: MCL-1500
Estimated Ship Date: Today
Estimated Ship Date: Today
Gear, Ring and Pinion, 3.73:1 Ratio, GM, 8.5/8.6 in., 10-Bolt, 3 Series, Set
Part Number: RMG-4900411
Estimated Ship Date: Today
Estimated Ship Date: Today
Gear, Ring and Pinion, 3.23:1 Ratio, GM, 8.5/8.6 in., 10-Bolt, 3 Series, Set
Part Number: RMG-4900191
Estimated Ship Date: Today
Estimated Ship Date: Today
Torque Converters, Remanufactured, OEM Style, 1.875 in. Slotted Hub, 3 Pad, 13.0 in. Dia., 1,200 Stall, Avanti, Checker, Excalibur, GM, Jeep, V6, Each
Part Number: CCV-TQBU3
Estimated Ship Date: Today
Estimated Ship Date: Today
U-Joints, Spicer 1310 To GM 3RL/S44/Mechanics 3/American Axle 1344, Steel, Each
Part Number: YGA-42013
Estimated Ship Date: Today
Estimated Ship Date: Today
