72 Duster build - Pro touring slant six

Nope. It needs more than an 1/8" to clear with a 9" wheel unless you run an extreme amount of negative camber or raise it up. Also if you pushed it in it will just rub worse on the other side. With my 9" wheel it just barely touches the inside at full lock so another 1/8" will make it much worse. With an 8" wheel (depending on backspacing) I think you can get away without rolling the lips but anything over a 245 series tire requires modifications.

For the trimming I had to cut out a good chunk at the bottom corners on each side. The rear didn't take much (I cut a little too much) but the front needed to be cut almost flush to the support rod. I had this photo on my phone but I can get a better shot later. I also had to change the splash shield bolt for a little extra clearance.

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Just a follow up comment on this.

I think the tire you are running complicates things as not every 275/35R18 tire is the same width. Based on tread pattern, I am guessing you are running BFGoodrich g-Force Rival S 1.5's. If so, the spec on those shows a tread width of 10.1" on a 9.5" rim. That is more tread width than a 295/35R18 Continental ExtremeContact DWS 06 Plus which spec's out at 10" of tread width.

You lose a little of that on a 9" rim, but hard to say how much the tread width is affected while the section width certainly is. And certainly the 295 tire has a bigger section width, but it is the tread width that affect the fitment in this case.

Not suggesting that you could run a 295 on the front (maybe, but not my point), only that the width of the tread has an impact on how well the tire fits on the front of these cars.

I've already bought an 18x9 +35mm open box wheel to mock up, but I've got to say that I kind of wish I had gone for an 18x10 +24mm with 295/35R18 tires and a spare set of fenders to hack. I think a 295 square setup would be just wicked.