Features and Benefits: Socket is built to have the correct clearance for yoke and locknut assemblies on a variety of truck transmissions and differentials; Socket has 3" of usable depth and is 4" long; This socket is designed for use with 3/4" square drive manual tools only; Resist rounding out ; Using the right tools save time and effort, eliminating the need to destroy standard sockets by grinding them down to fit tight pinion clearance.