17" wheel info needed

@72bluNblu Would these work i feel like it would be the same situation or by going to 18" make it better??? does a dart have better wheel openings or is it because of the disc brake conversion

So that combination is actually worse than your 17x7’s with a 215.

A 235/40/18 with 4.5” of backspace puts the tire 10mm closer to the fender than my current set of 275’s, and the rim itself is 17mm closer to the fender. Those are shorter tires though, and it looks like his ride height is higher than mine. Which makes a big difference. But the way my car is set up and the way I drive my car on the street that combination would rub on my car.

18’s are typically a bit easier to find in higher offsets (more backspace). And unlike 17’s they won’t interfere with the outer tie rod end once you get to around 5.6” of backspace, so, with 18’s you can run even more backspace. Which is how I can run 18x9’s with 275/35/18’s up front, I run 6.2” of backspace. But other than selection they don’t change much unless you’re trying to go bigger than a 245 up front.

Some of my recommendations are definitely more conservative than what other people run on their cars. There’s two main reasons for that. My car sits pretty low, which really reduces clearance. The other is its daily driver status- it sees parking lots, speed bumps, steep pitches and driveways, Costco trips with heavy loads, etc and thousands of miles a year. That means I actually have to run clearance to keep the tires from rubbing, I don’t trailer it or just cruise local roads to the car show. So some folks can run less clearance than I do. But I run as much tire as will fit on my car without rubbing with the way it’s set up, and with the body tolerances on these cars there’s no guarantee that one person pushing the limits means it will work for somebody else.