All 40-52 DeSoto flathead 6 rod journal dia: 2.124-2.125
1953: 2.125

1940-1952 Dodge 6 flathead journal dia: 2.0615-2.0625
1953: 2.0625

However, main bearing size on 40-52 DeSoto and 40-52 Dodge are the same.


1951 Ply Concord truck
1954 Nash Rambler 2 dr
1955 Nash Rambler Farina