What size is the crank nut on a Model A Ford?
Crank Nut Size for Model A FordThe crank nut size for a Model A Ford is 1-3/8″ (1.375 inches).This information is based on the hex size of the crankshaft ratchet nut, which is used to hold the pulley on the crankshaft and fits the hand crank into the end of it. What size is the …