Modern Drivetrain Swap

Wheels were gonna be how I corrected the track width issue. Although, the swaps I have seen this done are all on a 69ish charger, which is wider than my 71 challenger, and those guys used wheel offset to correct the track width issue.

I wish you luck , that would be a big project completely removing the front ends on two unibody cars, I assume you would even be getting into the firewall also. That would be a lot of fabrication work .
I am the process of doing two hemi challenger projects myself, check out my thread on forEbodies
http://www.forebodiesonly.com/forum/showthread.php?8901-Resto-mod-Challenger
That is the one thing I like about the E-bodies, the hemi fits in their nice ,and with the new borgeson power steering box that gives a modern feel ,Its a bolt in deal for everything with plenty of room.