8-3/4 Vs Dana60 Vs 9" Rear

Well Adam, they are all good when setup correct, but with enough power and wheel hook up the Dana is a must. But guys can get A bodies into the high tens with no issues on an 8 3/4.

Look at this link too. talks about in detail both the dana and the 8 3/4. http://www.autohobbydigest.com/8_75.html

I can tell you that the pinion angle on a 9" Ford is less desirable than a 12 bolt Chevy or an 8 3/4. The Dana has a 2-5% loss in power over a 8 3/4 too. I have read many times that the drag and power loss on the 9" is from 12-18%. So then your talking maybe a 40hp to the rear wheel loss. It became so popular to get a 9" because back in the day we got them drum to drum for $35. 1000's of old Fords in junk yards had them.

I would go with an 8 3/4. I ran 9 1/5 slicks and a stick and for a time did 6k rpm drops and never broke mine. But I have seen the 8 3/4 broke on bigger tires and heavier cars. Then a dana is the ticket, yes they way a little more too, but you will get better traction and it is tuff when set up the correct way.

my 2 cents after 30+ years of gears stay Mopar if you can...