So I finally got my rear disc swap and going into it, I knew I was going to have to grind on my brand new calipers because of my 6.5 backspace. Ive taken off quite a bit of material so far and its still not clearing, its making me nervous that I'm going to ruin my calipers. I just wanted to see if anyone else has done this and how far they got into the calipers. I'm sure it will be fine but just wanted to double check.

My Wilwoods cleared fine on my 8 3/4 with 8" BS
Centerlines

I bet they do, billet specialties did a wonderful job designing these wheels

Are you grinding on the outer radius to clear... can
you add a wheel spacer

Yes, the flat spots on either side of the pads. Can't run a wheel spacer, the tire is already right at the 1/4. If I had to guess, I didn't measure it because it didn't seem that tight, looked like I could knock a little off and be good to go..... Which is not the case unfortunately. I'm almost to the point of letting them clearance themselves

i had same issue u have to change your brake setup to a areo space setup which is smaller

Well that sucks, guess I'll be buying those new wheels I've been wanting sooner than I thought

what is the bolt pattern what car are u tring to install them on

Duster, 5x4.5, 15x10, 6.5bs. I've been wanting go to a 12" rear and run a 17x4 up front for awhile, guess I found a reason now

if price is write could be interesed