I had to do the same as Pre '68 dave said he did, the back plate from the trans gets warn(where the u joint comes in contact with) and it will make thing loose, I put a valve seat insert that fit so that it was hitting on the inside gears from the trans, not hitting the back plate of the trans. tightened everything nicely, hope that helps, Dan

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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.