Solid Transmission Mount; Powerglide/TH350/TH400/Borg-Warner/Muncie/Saginaw/Chrys. 4 Speed/Doug Nash 5 Speed; 3/16 in.; Top Slotted Holes; Threaded Nuts Welded To Bottom; • Solid Transmission Mounts must be used in conjunction with Solid Motor Mounts to prevent breakage of engine block and transmission case due to torsional stress • Replaces stock, O.E.M.-style soft rubber mount to eliminate linkage binding, driveline misalignment and unwanted transmission movement in racing and street performance applications • Sturdy mount is constructed from 3/16" steel and features slotted holes on top for transmission mounting and threaded nuts welded to bottom for crossmember mounting • Black zinc finish