275/35-18 Front Fitment Question - Attn 72BB and GDart

I have 18x9's with a 35mm offset too. But since I also have DrDiff's 13" brake kit, I list my offset at 30mm because that's the effective backspace with my brakes compared to stock.

As far as the 45mm offset on 18x9.5's, I'm guessing thats with AndyF's old viper caliper conversion. That kit moved the rotors out a 1/2" compared to stock. Regardless, unless something is really strange about Uhcoog1's car, there's some kind of additional offset in there somewhere. That's why its so important to know the entire set up, not just the rim offset. An 18x9.5 with 45mm offset would be a 1/2" into the frame on my car.

**Edit**

Uhcoog1's car has a 14.25" Viper caliper kit that came from Dr. Diff. I'm almost positive that was AndyF's kit, and looking up what I can find that kit had nearly a .75" offset compared to stock. That would basically reduce that 45mm offset to 26mm.