The next step up from the Shift Improver Kit is the Transpak. It has all the features in the Shift Improver Kit plus it provides additional driver manual control (GM TH-400, 350, Ford C-6 & Chrysler Torqueflite only). Most stock automatic transmissions won’t downshift into low gear above 15 mph, and automatically upshift at a predetermined speed no matter what gear you’re in. With the B&M Transpak, you can downshift at any speed, and you can hold the transmission in first gear to any speed that you want! This is an asset when you’ve got a modified engine, and you want additional RPMs, or you’re towing a trailer or driving heavy loads downhill.

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