Get Jim Proffit to email you a pic of his pedals. Even though he changed the trans, the pedals are bolted to the bellhousing and trans in the right place. If that is not enough I can try to find old pic of what my 46 looked like before change.

Tony- I know what you are describing; I think Barry may be referring to the m/c which is on the frame bracket on the larger trucks, but your pedals should be in same location as 1/2 ton even though the brake rod doesn't go directly into the m/c like on 1/2 ton.