What do you mean "wiggle"? Are you talking about end play of the crankshaft? If you are dropping the pan,did the pan look like it was taken off before? There is suppose to be end play in the crank maybe about .006-.012 from front to back. How are you checking for this "wiggle"?

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.