Automatic Transmission Shift Kits

Shift Kit, Performance, Buick, Chevy, Oldsmobile, Pontiac, GMC, TH350, 1969-81, Kit

Part Number: TRG-350-1-2

4.41 out of 5 stars ( 56 )

Estimated Ship Date: Friday 12/26/2025

Transmission Upgrade Kit, Shift Improver, GM, TH400, TH375, M40, Each

Part Number: BMM-20260

4.81 out of 5 stars ( 16 )

Estimated Ship Date: Friday 12/26/2025

Shift Improver, Chevy, TH350, Each

Part Number: BMM-30262

4.72 out of 5 stars ( 25 )

Estimated Ship Date: Friday 12/26/2025

Shift Kit, Shift Improvement, ISO-CON Valve, GM, 4L60E, 4L65E, 4L70E, 4L75E, Each

Part Number: TRG-SK4L60E

5.0 out of 5 stars ( 6 )

Estimated Ship Date: Friday 12/26/2025

Shift Kit, Automatic Type, Chrysler, Torqueflite, 3 Speed, Full Race Shifts, Each

Part Number: TRG-TF-2

4.77 out of 5 stars ( 26 )

Estimated Ship Date: Friday 12/26/2025

Shift Kit, Automatic Type, Ford, C-6, Towing, Competition, Heavy Duty, Gas Engines, Each

Part Number: TRG-67-1-2

4.82 out of 5 stars ( 17 )

Estimated Ship Date: Friday 12/26/2025

ZIP KIT

Part Number: SOX-ZF8-ZIP

Not Yet Reviewed

Estimated Ship Date: Friday 12/26/2025

• $10 Summit Bucks

Shift Kit, Performance, Ford, Lincoln, Mercury, 1970-83, Automatic Shift, C-4, Each

Part Number: TRG-40-2

4.74 out of 5 stars ( 19 )

Estimated Ship Date: Friday 12/26/2025

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: Friday 12/26/2025

Automatic Shift Kit, 45RFE, 545RFE, 68RFE, Chrysler, Dodge, Jeep, Ram, Kit

Part Number: TRG-SK45RFE

4.67 out of 5 stars ( 3 )

Estimated Ship Date: Friday 12/26/2025

Automatic Transmission Shift Set, Performance, with EPC Boost Pressure Relief Valve System, for 4L80E, 4L85E, Kit

Part Number: TRG-SK4L80E

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Friday 12/26/2025

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

Part Number: BMM-70239

4.65 out of 5 stars ( 20 )

Estimated Ship Date: Friday 12/26/2025

Shift Kit, Performance, Chevy, GMC, Allison, 1000, 2000, 2400, Kit

Part Number: TRG-SKALLISON-JR

4.8 out of 5 stars ( 5 )

Estimated Ship Date: Friday 12/26/2025

Shift Kit, Automatic Type, Ford 1967-69, C-4, Towing, Competition, Heavy Duty, Each

Part Number: TRG-47-2

4.5 out of 5 stars ( 10 )

Estimated Ship Date: Friday 12/26/2025

Shift Kit, Automatic Type, Chrysler, Torqueflite, 3 Speed, Street Use, Each

Part Number: TRG-TF-1

4.83 out of 5 stars ( 6 )

Estimated Ship Date: Friday 12/26/2025

Automatic Transmission Shift Kit, Automatic Transmission Valve Body Repair Kit, Buick, Chevrolet, Oldsmobile, Pontiac, Saturn, Volvo, Kit

Part Number: TRG-SK4T65E

5.0 out of 5 stars ( 4 )

Estimated Ship Date: Friday 12/26/2025

Transmission Upgrade Kit, Shift Improver, GM, 4L60E, Each

Part Number: BMM-70360

4.82 out of 5 stars ( 11 )

Estimated Ship Date: Friday 12/26/2025

Automatic Transmission Shift Kits, Valve Body Repair, AODE, 4R70E, 4R70W, 4R75E, 4R75W, Kit

Part Number: TRG-SKAODE

Not Yet Reviewed

Estimated Ship Date: Friday 12/26/2025

Shift Kit, Automatic Type, Ford 1965-66, C-4, Towing, Competition, Heavy Duty, Each

Part Number: TRG-45-01

5.0 out of 5 stars ( 15 )

Estimated Ship Date: Friday 12/26/2025

Shift Kit, Performance, Buick, Chevy, Oldsmobile, Pontiac, GMC, TH350C, 1981-91, Kit

Part Number: TRG-350C-1-2

5.0 out of 5 stars ( 10 )

Estimated Ship Date: Friday 12/26/2025

SHIFT KIT Valve Body Repair Kit, 6R60-80 GEN1 SHIFT KIT® Valve Body Repair Kit

Part Number: TRG-SK6R80-A

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Friday 12/26/2025

Shift Kit, Full Manual or Automatic Type, GM, Powerglide, Competition, Street, Each

Part Number: TRG-PG-2S

5.0 out of 5 stars ( 3 )

Estimated Ship Date: Friday 12/26/2025

Transmission Upgrade Kit, Shift Improver, Ford, C-6, Each

Part Number: BMM-40262

4.75 out of 5 stars ( 8 )

Estimated Ship Date: Friday 12/26/2025

SHIFT KIT Valve Body Repair Kit, 6R80 GEN2 SHIFT KIT® Valve Body Repair Kit

Part Number: TRG-SK6R80-G2

Not Yet Reviewed

Estimated Ship Date: Friday 12/26/2025

Shift Kit, Performance, Dodge, Kit

Part Number: TRG-45RFE-HD2-A

4.33 out of 5 stars ( 6 )

Estimated Ship Date: Friday 12/26/2025