Transmission & Drivetrain
Availability
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 37 Items.
Automatic Transmission Shift Kits, Valve Body Repair, C4, Kit
Part Number: TRG-SK4
Not Yet Reviewed
Estimated Ship Date: Apr 27, 2026 if ordered today
Estimated Ship Date: Apr 27, 2026 if ordered today
Automatic Transmission Shift Kits, Valve Body Repair, C4, Kit
Part Number: TRG-SK4-71
Not Yet Reviewed
Estimated Ship Date: Apr 27, 2026 if ordered today
Estimated Ship Date: Apr 27, 2026 if ordered today
Shift Kit, Shift Improvement, ISO-CON Valve, GM, 4L60E, 4L65E, 4L70E, 4L75E, Each
Part Number: TRG-SK4L60E
Estimated Ship Date: Today
Estimated Ship Date: Today
Shift kit Ford FM/3 & FMX: 1967-72
Part Number: TRG-SK4S
Not Yet Reviewed
Estimated Ship Date: Apr 27, 2026 if ordered today
Estimated Ship Date: Apr 27, 2026 if ordered today
ATP Automatic Transmission Upgrade Kit
Part Number: ATP-SK4
Not Yet Reviewed
Estimated Ship Date: Apr 29, 2026 if ordered today
Estimated Ship Date: Apr 29, 2026 if ordered today
Automatic Transmission Shift Set, Performance, with EPC Boost Pressure Relief Valve System, for 4L80E, 4L85E, Kit
Part Number: TRG-SK4L80E
Estimated Ship Date: Today
Estimated Ship Date: Today
Automatic Transmission Shift Kit, Automatic Transmission Valve Body Repair Kit, Buick, Chevrolet, Oldsmobile, Pontiac, Saturn, Volvo, Kit
Part Number: TRG-SK4T65E
Estimated Ship Date: Today
Estimated Ship Date: Today
Shift Kit, TH200-4R, Kit
Part Number: TRG-SK200-4R
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Automatic Transmission Shift Kits, Valve Body Repair, C4, Kit
Part Number: TRG-SK4SL
Not Yet Reviewed
Estimated Ship Date: Apr 27, 2026 if ordered today
Estimated Ship Date: Apr 27, 2026 if ordered today
SHIFT KIT Valve Body Repair Kit, 4F27E, FNR5, FN4A-EL, FS5A-EL SHIFT KIT® Valve Body Repair Kit
Part Number: TRG-SK4F27E
Not Yet Reviewed
Estimated Ship Date: Apr 27, 2026 if ordered today
Estimated Ship Date: Apr 27, 2026 if ordered today
SHIFT KIT Valve Body Repair Kit, 4L30E SHIFT KIT® Valve Body Repair Kit
Part Number: TRG-SK4L30E
Not Yet Reviewed
Estimated Ship Date: Apr 27, 2026 if ordered today
Estimated Ship Date: Apr 27, 2026 if ordered today
Automatic Transmission Shift Kits, Valve Body Repair, C4, Kit
Part Number: TRG-SK4L
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
SHIFT KIT Valve Body Repair Kit, 4T60E 1991-99 SHIFT KIT® Jr. Valve Body Repair Kit
Part Number: TRG-SK4T60E-JR
Not Yet Reviewed
Estimated Ship Date: Apr 27, 2026 if ordered today
Estimated Ship Date: Apr 27, 2026 if ordered today
SHIFT KIT Valve Body Repair Kit, TH325-4L SHIFT KIT® Valve Body Repair Kit
Part Number: TRG-SK325-4L
Not Yet Reviewed
Estimated Ship Date: Apr 27, 2026 if ordered today
Estimated Ship Date: Apr 27, 2026 if ordered today
Automatic Shift Kit, 45RFE, 545RFE, 68RFE, Chrysler, Dodge, Jeep, Ram, Kit
Part Number: TRG-SK45RFE
Estimated Ship Date: Today
Estimated Ship Date: Today
SHIFT KIT Valve Body Repair Kit, TH440-T4, 4T60 SHIFT KIT® Jr. Valve Body Repair Kit
Part Number: TRG-SK440-JR
Not Yet Reviewed
Estimated Ship Date: Apr 27, 2026 if ordered today
Estimated Ship Date: Apr 27, 2026 if ordered today
Differential Shims, Differential Carrier Shim Kits, Steel, Jeep, Toyota, Kit
Part Number: MGR-SK47
Estimated Ship Date: Today
Estimated Ship Date: Today
Automatic Transmission Shift Kit, Dodge, 48RE, Kit
Part Number: TRG-SK48RE
Estimated Ship Date: Today
Estimated Ship Date: Today
Automatic Shift Kit, THM400, Buick, Chevrolet, GMC, Oldsmobile, Pontiac, Car, Kit
Part Number: TRG-SK400
Estimated Ship Date: Today
Estimated Ship Date: Today
Automatic Transmission Shift Kits, Valve Body Repair, A604, 42RLE, 41TES, 40TES, Kit
Part Number: TRG-SK42RLE-VLP
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Dodge 48RE:Converts 46/47 RE Valve Body to Shift -kitted 48RE
Part Number: TRG-SK-48RE-CV
Not Yet Reviewed
Estimated Ship Date: Apr 27, 2026 if ordered today
Estimated Ship Date: Apr 27, 2026 if ordered today
SHIFT KIT Valve Body Repair Kit, TH425 SHIFT KIT® Valve Body Repair Kit
Part Number: TRG-SK425
Not Yet Reviewed
Estimated Ship Date: Apr 27, 2026 if ordered today
Estimated Ship Date: Apr 27, 2026 if ordered today
CARRIER SHIMS D30 FRT JK RUBICAN
Part Number: MGR-SK48
Not Yet Reviewed
Estimated Ship Date: May 4, 2026 if ordered today
Estimated Ship Date: May 4, 2026 if ordered today
Polaris SLINGSHOT "Jet" style "Night Series" Shift knob
Part Number: AIX-SK400J-N
Not Yet Reviewed
Estimated Ship Date: May 7, 2026 if ordered today
Estimated Ship Date: May 7, 2026 if ordered today
Specialty Components, TH440-T4, 4T60 SHIFT KIT® Valve Body Repair Kit
Part Number: TRG-SK440-3
Not Yet Reviewed
Estimated Ship Date: Apr 27, 2026 if ordered today
Estimated Ship Date: Apr 27, 2026 if ordered today
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