B&M Shift Improver Kit for A727/A904 Transmissions

The B&M Shift Improver Kit is designed to enhance the performance and longevity of Mopar A727 and A904 automatic transmissions. This kit recalibrates your transmission to optimize performance, reduce wear on clutches and bands by eliminating shift overlap and slippage, and extend the overall life of the unit. The kit offers two distinct performance modes to suit your driving needs: Stage 1 Heavy Duty provides firm, positive shifts suitable for all street vehicles without sacrificing driver comfort, while Stage 2 Street/Strip is engineered for high-performance street use and competitive events, delivering the quickest and hardest-hitting shifts possible. Installation is straightforward and can be accomplished with basic tools in approximately an afternoon, as evidenced by the included instructions. The kit is constructed with B&M's over 65 years of quality manufacturing, ensuring a durable and reliable upgrade for your transmission. This is a direct-fit automatic transmission valve body kit, also classified as a service kit and shift kit. This B&M® Shift Improver™ kit is compatible with Chrysler, Dodge, and Plymouth vehicles equipped with A727 automatic transmissions from 1966-1970 (all engines), A904 automatic transmissions with 6-cylinder engines from 1966-1977, and A904 automatic transmissions with V8 engines from 1968-1970.