This SAE Standard specifies the major dimensions and tolerances for Engine Flywheel Housings and the Mating transmission Housing Flanges. It also locates the crankshaft flange face or the transmission pilot bore (or pilot bearing bore) stop face in relation to housing SAE flange face. This document is not intended to cover the design of the flywheel housing face mating with the engine crankcase rear face of the design of housing walls and ribs. Housing strength analysis and the selection of housing materials are also excluded.
