Quote:

You can generalize through all A-body.

The body style/shape dictates the distance to the place the outer edge of the tire will rub.

67-69 Darts are just like your 68. Even 70-72 Darts are the same in the rear. And very close in the front as they take a different wheel lip moldling.

GMachineDart would be a good guy to benchmark from.

On my 68 Dart: 245/60/15 15x7 with 4.25" to 4.5" backspacing depending on small or large bolt pattern is about all the rear will take with the car lowered. My rear wheel lips are not rolled and the body has a tiny be more room to the quarter on one side.

Sure there are people that have got more, but make sure their back ends are not all jacked up.

IMHO, the springs are only about 1/2" past the inner fender. But when the rear end rolls, the top of tire tilts in relative to the body. So you need some room there.

In the front I've barely got 225/60/15 on 15x7 4.25" backspacing rim. I've got 245/60/15 with 15x6.5 rims BUT I moved the bottom front of the fender out.

Might consider some 16x7's 5.0" backspacing with 245/50/16's. Then run 1/2" billet spacers in the rear. Or maybe 17x7's and you probably will have to mess with the bottom front fender lip some. Hopefully GMachineDart has some better insight.



I'm going to have the full Hotchkis TVS with Dr Diff's 13" brembo-style calipers in front and 11.7" Cobra calipers in the rear. My rear end is stock A-body length.

Thanks through my research tonight, that's what I've been finding out. I was able to get more information about the wheels above. fronts are 18 x 8's with a 7mm offset and rears are 18 x 10's with a 0mm offset. He was running spacers on his Mustang so I might ask for them if I decide to pick them up tomorrow as I know the fronts won't fit. I believe rears should be able to fit fine. Worst case scenario I'll trim the lip. If I pick these up tomorrow, I might just order some new 245/40/18 tires for the front and 255/40/18's for the rear on clearance from TireRack (trying to save some money instead of forking over $2500 for new wheels and tires). I'll probably sell the fronts on CL for cheap (to recover some money) and save the 275/35/18 for the future (in case I want to mini-tub or use offset shackles).