Need to know stat...m-body 8 1/4

krabysniper said
Identical track widths do not necesarily mean identical rear end widths.

Huh? We're talking about a rear/axle housing here, not how many different combinations of tires and wheels can you come up with to get a different stance on the car. I believe the poster's question refers to the flange-to-flange, dimesion "A" in the chart below, not what wheels and tires might work. Track and perch widths are different. I had an F(M/J/whatever)-body rear 8.25 housing in my Duster when I got it. It is certinly not a direct bolt in and I can tell you from personal experience it does not fit correctly even after you move the perches to 43"! Too wide for tire clearance without extreme rear lift or obscene amount of backspace.

http://www.bigblockdart.com/techpages/diffchart.shtml