Hi All! I am performing a gear swap in my 93 GT. I am replacing a 3.73 with a 4.10. (Both Ford Racing gearsets). Also replacing diff with Detroit Truetrac and 31 spline Moser axles. All bearings, races, and seals replaced. My question is with the gear wear pattern I am getting. It seems to be wiping the marking compound off of the complete tooth rather than a small section like I think it should have. I'm not sure if it's my pinion depth is set wrong and causing it. I have 22 in/lbs of drag on pinion. I used the same shim that I removed from the old pinion since they were both Ford Racing. It was a .025" shim. I have between .008" and .010" of backlash on the ring gear. Anybody have any ideas? I have attached some pictures.