Just a little FYI for those that have these brakes and are running the OE GTA wheels. I swapped a set of GTA wheels on my Formula and after a little math and measuring found that you can run the rear wheel up front with a .250" spacer with no clearance issues. I was concerned about this as I was previously running front Formula wheels at all four corners and couldn't find anyone willing to part with a pair of front GTA wheels. This keeps the wheelwell filled up nicely and puts the deeper looking wheel out back where it belongs appearance-wise. This should also keep your front track at it's original width. And for those concerned with stud length with the spacer Ed uses longer than stock wheelstuds which still gives plenty of threadlength for the lugnuts to grab on to. I've also noticed no ill effects while driving with the spacers either. Just thought I'd pass this tidbit along.

 

Where did you get the spacers? Very nice tech tip BTW...as I have his kit and GTA wheels

Thanks!

 

I got mine from a local wheel/tire dealer. Cost about $6 each. You can also get them from Summit,just don't try Advance or Auto Zone.

 

Sweet....Thanks!

 

Hey Mongoose...just out of curiousity...do you think this would still work with the 10.5" front (stock) brakes, just by using a spacer? I would assume that if a GTA owner just had longer wheel studs in the rotor, then it could work...

Yes or No?

Thanks...

 

I don't believe so. The reason being that the difference between the front and rear backspacing is 5/8" or .625". The C4 kit makes up for 3/8" or .375" of it with the rotor mounted on the hub. The spacer makes up the last 1/4" or .250" needed to get the rear wheel where the front sat previously with the stock brakes. To get the rear to work with the stock brakes would require a 5/8" spacer and even with longer studs that would be way too much.