hello, i figure this has been covered in the past , but didn,t find it thru search.
the rims on my 50 6400 are different from the ones on my 52 coe and 56 school bus. the outer lip on the lock ring side is rounded on the 52 and 56. on the 50 6400 it is dished like the other side.
is this a difference in years or series?


http://www.flickr.com/photos/11977495@N06/sets/
1952 COE
1952 3100
1953 3100
1950 6400
1951 Suburban