Front wheels spaced far out

The front track is wider right from the factory, with factory parts. I forget the difference. I seem to remember it being 1.9 inches. Ie; front track 57.4, and rear track 55.5 With the skinny 5.5 factory wheels it was hardly noticeable.

You could do what we did back in the day; put fatter tires on wider wheels back there, and if they get into the fenders just put airshocks on! Hah. That's what we did.
ok seriously; forget airshocks. but you might be able to space the rears out.This usually means longer studs and spacers, which are available in 1/4 " thickness. Stack up what you need. People used to say not to put more than one spacer in there, but I have seen 2 in there on teener cars and more on slantys. Keep an eye on the wheel-nut torque.
Another option, which I don't like, is to machine some meat off the back of the front rims. To my way of thinking that reduces my safe cornering ability. But if you are not into that sorta thing, I suppose.....