It would be easier to oval out the hinge straps to allow the door to slide back.
BTW, is the beltline of the door lined up with the beltline of the cab?
The reason I ask is that the door is slightly wedge shaped top to bottom. Moving the door upwards will close your gap some.

Last edited by 52Carl; 07/08/2017 12:29 AM.
1952 5-window - return to "as built" condition | 1950 3100 with a 235 and a T-5 transmission