F1 measurement needed.

I'm having some issues getting things lined up on my 1950 f1. Could someone get me a measurement from the top of the box to the body line on the back of the cab in the middle. Thanks in advance

mike

 

mine is reading 6-3/8" from the top of the bed to the body line on the back of the cab.

 

awesome. thanks.

 

Here are some other measurement that may help
http://www.fordbarn.com/earlyv8/forum03/membersarticles/truck/F-1 Info.pdf

 

How about this?