The B&M® Shift Improver Kit™ for 1970-1982 Ford, Lincoln, Mercury C4 automatic transmissions recalibrates your automatic transmission for optimum performance and extended life! Select the mode that best suits your application Provides crisp shifts on any stock automatic transmission Eliminates shift overlap and excess wear on clutches and bands due to slippage The B&M Shift Improver Kit the easiest way to get the stout performance you've always wanted out of your automatic transmission - and you get two modes of performance to select from: Heavy Duty, or Street/Strip. It's our least expensive and simplest to install kit. All you need are some hand tools! In the space of an afternoon, you can turn your transmission into a B&M-tuned unit! Ask the thousands of satisfied customers that have installed one in their transmissions! STAGE 1. HEAVY DUTY Firm positive shifts without loss of driver comfort for improved performance in all street vehicles. Recommended for off-road, towing and daily driver performance cars. STAGE 2 is our Street/Strip set-up and provides firm positive shifts for high performance street use or for competitive events. This level is for the enthusiast who wants the hardest, quickest possible shifts.
Perfect for Off-Road, Towing or Street/Strip Use
Eliminates Soft and Sluggish Shift
Eliminates Shift Overlap
Provides Crisp Shifts
Automotive Item Grade
California Proposition 65 Chemical Name
Cadmium and cadmium compounds
California Proposition 65 Required
Automatic Transmission Valve Body Kit
This part is legal for sale or use on Emissions Controlled Vehicles, Uncontrolled (Non-Emissions Controlled) Vehicles, and Racing Use Only Vehicles because it does not affect vehicle emissions and is not covered by emissions regulations.