Kickdown Kit – GM TH-700-R4

TH-700R4 transmissions will downshift from fourth to third gear anytime there is more than about half throttle (except Corvette and some H.O. Camaros and Firebirds). As a result, it is impossible to cruise at high speeds in overdrive (fourth) gear. This kit prevents a forced part throttle kickdown from fourth to third gear, and allows cruising at higher speeds in overdrive. The transmission will only kick down from fourth to third gear at 3/4 throttle.

TH400 Kickdown Switch

When swapping the TH-400 into any vehicle, this kit makes installation of the transmission kickdown feature a snap. Mount to either a TH-700 or TH-350 throttle cable bracket.

Application:

• 1991-1993 BUICK COMMERCIAL CHASSIS
• 1988-1988 BUICK LESABRE Automatic Trans 4-Speed Trans THM700-R4/4L60/MD8 Trans
• 1984-1984 BUICK REGAL Automatic Trans 4-Speed Trans THM700-R4/4L60/MD8 Trans
• 1991-1993 BUICK ROADMASTER
• 1990-1990 CADILLAC BROUGHAM Automatic Trans 4-Speed Trans THM700-R4/4L60/MD8 Trans
• 1991-1992 CADILLAC BROUGHAM
• 1992-1993 CADILLAC COMMERCIAL CHASSIS
• 1993-1993 CADILLAC FLEETWOOD
• 1985-1989 CHEVROLET ASTRO
• 1990-1993 CHEVROLET ASTRO RWD
• 1989-1993 CHEVROLET BLAZER 4WD
• 1984-1986 CHEVROLET C10