Folks, I have a question about wheel interference and spacers for my MK4 Roadster with IRS
I have no experience with spacers and my search results were more related to coupes.
In my build thread weekly update
https://thefactoryfiveforum.com/show...7-Ford-and-ITS
I described interference between Powerstop 13 2015 Mustang GT rear brakes and my FFR Halibrand 17x10.5 wheels. It seems to be interfering on the caliper corner edge near the outside of the wheel mounting flange
The front 17x9 clear the Powerstop 13 2004 2 piston front brakes fine.
On the rears I tried washers on the lug nuts:
-with 1 0.105 washer the wheel still barely rubs.
-with 2 washers (0.210) the wheel spins freely.
Should I use a wheel spacer?
Is 0.25 enough, or 0.5, ie how much clearance is needed?
I plan to run 315/35-17 and 255/40-17 tires
If I run rear spacers will the tires hit the fender outside edge?
What about how it will look?
Will I want to run the same spacer up front?
Should I try to pinpoint the interference and grind the caliper?
Enough questions, Ill shut up and listen.