I am installing a T-3372 warford trans support in my 1925 model TT one ton truck. The distance between the frame rails (18 inches) is not wide enough. What is the distance between the frame rails right behind the rear running board bracket? On my truck they lengthen the frame instead of shortening the drive shaft.
Model T and TT frames are 23" outside-to-outside.
My suggestion would be to weld a strap on each side and bolt thru the web of the channel instead of the flange.
When you drill thru the flange you weaken the channel, and the holes look like they are for 7/16 or 1/2 inch bolts.