Sonnax Ford C6 servo apply levers are made from 6061-T6 aluminum forgings which are less susceptible to distortion and cracking than the cast OE levers. These levers are excellent as replacements for hard-to-find, OE servo levers which are no longer in production. For greater band apply force with a given servo, Sonnax servo apply lever 36916FF features a special, non-stock FF ratio (2.82:1). Due to this aggressive lever ratio, Sonnax does not recommend using this lever with H or R code servos.