Ed,
I'm looking at putting the exact same spacers you did on my ZR2 Bison. Did you have to trim wheel studs to mount the 1.5 spacers? You said there was no rubbing at wheel lock? only on the mud flaps?
No trimming on the studs for the spacers. I have seen others who had to trim with 1" and 1.25", but not with the 1.5".
I do get some rubbing on the Weather Tech mud flaps on the front wheels, but only at full lock. I have not tried removing them to see if the rub is still there or not though (I doubt it would be).
