MuuMuu101's 68 Dart, A Learning Process...

goldduster318 said
It might work but it'll be tight. Usually I'd like to think of a finger's width (roughly 1/2" clearance) everywhere due to the tire deflection and the suspension deflection especially in the rear axle since the leaf springs will flex a little as well. This is more of an issue to the quarter panel than the spring since there won't be much dynamic movement relative to the spring.

Mine will occasionally rub pulling into my driveway where you're making a moderate left and hitting it with a good jounce at the same time because the LF fender was in an accident at one point and isn't super straight. Everywhere else it has 1/2".

Well, I have at least 3/4" on both sides, if I give myself 1/4" of each that leaves me with that 1/2" gap and 1/2" of extra tire. Almost all of my rubbing problems so far have been due to contact to the quarter panels. That's why I was thinking about going to +35mm offset Enkei wheels (while still using +5mm spacers on the rear, +30mm effective offset). That will place the tires closer to the leaf springs compared to the +32 mm offset wheels (+27mm effective offset).

72bluNblu said
It'll work with 275's. Keep in mind that you won't see the same section width's because you're putting the 275's on a 9" wide rim, they're measured on a 9.5" wide rim. They'll probably only end up being about 10.6" wide on a 9" wide rim, that's about what my 275/35/18's measure on the front of my car. Based on your pictures I'd want most of that extra width on the spring side though, I see what the tape says but I don't think I'd want to give up too much more clearance to the quarter. I only run about 3/8" to the springs with my 295/35/18's on 18x10's on the back of my car, but I've never had an issue with the tires rubbing the springs.

To fit the larger tires I need new wheels as my wheels are dicontinued and the larger tire won't fit with the +22mm wheels I have on the rear. I was going to go with +35mm offset Enkei's in a 9.5" wide wheel (it would match the specs from Tirerack). Looking at Rimsntires.com, it seems like that will put me at about 0.4" closer to the leaf springs and about 0.2" closer to the quarter panel compared to the +32mm offset wheels. Right now my quarter panel clearance is significantly less than what is on the tape measure. my current wheels are only about 1/4" away from the quarter panels and rub the sidewalls when the trunk is full or I have a heavy passenger on turns. Granted, I've pounded out the quarter panels a little bit since then.