Key type Woodruf 3/16 x 3/4 of the pedal on the axis
Suitable for Jeep Willys MB, M38, M38A1, CJ2A, CJ3A, CJ3B, CJ5, CJ6, Hotchiss M201 and Ford GPW.
MB/GPW/M201 CJ-2A M38 M38A1 CJ-3A CJ-3B
Properly sized Celoron pinion key for the slot on your crankshaft to hold the pulley.