The only difference I can think of between 3100 and 3600/4400 cabs would be the transmission floor cover. The 4400 would have a hole in that cover for the 4 speed floor shifter and the hand brake.

Last edited by 52Carl; 07/29/2023 12:09 AM.
1952 5-window - return to "as built" condition | 1950 3100 with a 235 and a T-5 transmission