Try writing to this fellow, he was a e-bay seller that had tons of old NOS parts at one time. He helped me out with steering box internals.
BBs-OLD-Auto-Truck-Parts
According to the parts manual. '37 to '40 are the same, '36 is different. How about a whole box swap? '41 to '46 used roller balls and a slower ratio for easier steering. I replace my '37 box with one and it drives much nicer.
Joe
Last edited by cletis; 11/18/2012 9:28 PM. Reason: Deleted Ebay link
