Truett&Osborn Torque Monster crank shaft for Knukleheads 1940-1947 feature full weight flywheels with removable pinion snd sprocket shaftsas original, trued and balanced for cast pistons. Flywheel include forged and machined H-Beam connecting rod set of certified 4340 steel lwith multistage heat treatment and are fitted with Torrington Rollers, with allooy bearing retainer cages.
This is the best Crank shaft you ever will buy