Oh man that Duster looks killer with those rims... what brand are they? Interested in backspacing and axle width too. Thinking about going more modern on my Demon, but probably with black wheels
Fronts are 18x9's with a 35mm offset (6.4" backspace) with 275/35/18's. But I also run a tubular UCA's, Dr. Diff's 13" cobra style brake kit, and a 3mm spacer to make things fit.
Rears are 18x10's with a 38mm offset, which is a 7" backspace. But that's with a 68-70 B body rear axle and a 1/2" spring hanger/shackle offset. So, axle is 60 1/8" drum to drum, 54 15/16" flange to flange. Perches are moved in and at 42" c-c.