Make sure that you have the repaired area of the dash (and all of the rest of it) straight and true.
Use a straight edge vertically under the bottom edge and horizontally against the back of the bottom edge.
If it is bent up or pushed in, there goes your space.
You might want to find another brace. If, in repairing the bottom end, you didn't recreate the proper bend, could also be a problem. The fit has little room to spare.
I have a '49-'53 COE cab in the shop now. I have not removed the brace (may not have to, to tig up the stress cracks in this one). I can take some measurements if that would help.
Last edited by Jim Sears; 05/31/2017 1:21 AM.