Our polyurethane GM transmission mount offers added strength without the harshness of a solid mount and is impervious to chemicals, making it a smart upgrade over traditional rubber mounts. These quality items work great with our engine and transmission crossmembers. Kit includes: • Transmission Mount • Hardware to mount to transmission • NEW Interlocking design! Eliminates seperation. • Limited Lifetime Warranty These stock replacement mounts are available for TH350, TH400, Powerglide, Muncie 4 speed and 700-R4 transmissions. Please specify engine type