[Guest]

Per Baer's techie their hubs add .125 or 1/8 inch per side to the front track. I want to go with Forgeline RS's in 17 x 9.5 inch wide. A test fit showed that they still tuck (clear) the fenders with 285/40/17's and I could come out a tad more.
However they hit my HO sway bar way before full lock so I need to move the rim out as much as possible. My brain is fried now. Do I add or subtract back spacing to move the wheel out.

 

[Guest]

Adding backspacing (more inches of backspacing) pushes the wheel IN towards the caliper. Less backspacing will bring your wheel out closer to the fender lip. Good luck.