18's with 275s on a Duster

go-fish said
We’ll, here goes. Instead of starting a new thread I will tag onto this one in hopes that @Scat will show back up. His wheels are close to what I’m thinking about doing.

I have a set of Forgeline 18x9 and 18x10’s.
I have measured the backspace with a straight edge on the rim measuring to the WMS. 9’s are -12 and 10’s are 0

I’m using the conversion chart to get the offset.

View attachment 1716157362

I had the wheels for a project that went south. I have the complete suspension that I put together for that car (SPC Gen 1 UCA, strapped LCA, QA1 adj. strut rods…). The brakes are Viper from the Dr.

The car is painted but if I decide to use this suspension and wheel set on my Duster I will commit to the pie cut behind the front wheel opening and purchase a roller and heat gun. Also, reverse tub.

One good thing with the wheels is their 3 -piece so if I need to make them a different size it is a possibility.

I might try to get may hands on a Percy’s wheel right and a roller pretty soon.

18x9 -12 offset for the front? So an 18x9 with a 4.5” backspace?

I really don’t see that working. I have that Viper brake kit up front with SPC genI UCA’s, running 18x9’s with a +35mm offset. So that would mean your 18x9’s would be 47 mm further out than mine, or 1.85”. I rolled my fenders to clear my 275/35/18’s. Granted my car is pretty lowered, but that doesn’t cost me 2” of clearance.

I’ve been surprised before, @Craig Burriss put a set of 18x9.5, +12 wheels on his Duster with 285’s. But his fenders have the bottom corners cut back due to rust and he pushed the opening out with turnbuckles. And those 18x9 -12’s would still move the outer lip about 3/4” out from Craig’s.

If those are the 3 piece Forgelines I’d swap sections out and try to get into the +30 or 6” backspace ballpark for the 18x9’s up front.

In the back the 18x10, +0’s are doable. It’ll depend on your set up of course, but with an A-body 8 3/4 and BBP axles even with the stock spring locations and say a rear disk brake kit you’d be pretty close to where you needed to be.