Walt,

You might try Novak.com and they may be able to tell you what that main shaft fits? It sure is not for the SM420.

Tim


"Pay attention to the details! It ALWAYS pays off."

1949 Chevrolet 3100 Series 1/2 ton Pickup
1964 Chevrolet C10 (Ol' Yella) (SOLD)
1958 Chevrolet Biscayne 2 door (SOLD)
1970 VW Beetle