Hello all...I'm looking to put different wheels on my '84 GT, but it seems as if only Pony and TRX will fit without modification...is this true? I've had and '86, '92, and '95, but never modified them because I was broke in my teens and twenties, so it's time! I also understand I have a one or two year only T.F.I. And ideas on a new under the hood wiring harness? Thanks in advance!