18's with 275s on a Duster
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.
Correction: The 18x10 backspace is 5.75” backspace. I measured with the wheel n a different position so I could see the tape better.
The lengths I’m willing to go on this semi-freshly painted car is:
Roll fenders, lengthen fender support rods, and cut the pie cut like
@Craig Burriss . I have touch up paint to airbrush over the weld.
In the rear, I have an an 8.25 now but also have a 68-70 8.75 housing w/ a 489 core.
A previous owner had put an MP leaf spring relocation on it and reverse tubbed it. The man I bought the car from had the reverse tubs “fixed”. In regards to the springs. I could easily swap back.
I have 90% of the parts on hand to do this. I need a driveshaft, a rear-end build (?), wheelwright, heat gun, and a roller.
So an 18x9 with a 4.5” backspace?
I measured with the wheel face up, from the ground to the wheel mounting surface. Is this the correct method for a b.s. measurement?
