JEGS Powerglide Tailhousing features a custom, stronger than stock, cast aluminum housing with a needle roller bearing for a lower drag coefficient and greater durability in racing applications. Fully assembled, stock 11" length, stock bolt pattern, accepts your trans mount in the stock location, Direct bolt-in replacement works on any stock aluminum or aftermarket powerglide case. Designed for use with 555-60331 yoke for proper fitment. Aftermarket forged yoke available separately.