Will 15" rims with 3.5 backspacing fit my 69 Baracuda?

Suregrup, you're right about the backspacing being 4.25 on the cop car wheels. I've got 4 of them for my dart (71). Just a sidenote, I've got 225/60-15's on the front with no issues. Oh yeah, Ive got some serious hub cap issues right now! I wish I could find a set of those with the holes in them.