8 3/4 vs Dana 60

My Duster has 8 3/4 I have ran in the 10's with trans brake at 5000 rpm and no problem. I do have 35 spline axles and a spool. My dad back in '69 bought a 67 Hemi Charger 4-speed and took out the dana and swaped with 8 3/4(quick gear changes at the track) and was running the big racer brown cam and all the go fast stuff at the time, with 4.56 gears and launching @ 5000 rpm and never broke the rear end. In '92 we took out the 8 3/4 and put a dana back in(yes he still has the car) If any one has the book "Moter City Muscle" its the Gold 67 Charger that has the 2 page lay out. So no I would say the 8 3/4 will stand up to the task. Just my 2 cents