i took my truck apart and you are right,rockauto has the king pins i needed and they also had oversize so i can fix the axle,great call with rockauto! thank you so much, the king pins set is the same as 1952 3/4-1 ton trucks.

http://s1055.photobucket.com/user/baldybenny/library/

1936 1.5 wrecker,1937 gmc coe,1939 Chevrolet coe,1942 4x4 coe, 1942 coe,1946 dump,1947 2 ton dump,another 1947 2 ton dump,1950 coe,1967 c30,1937 cat 22,1936 Chevrolet 5 window foremans coupe, 1914 ford speedster.