I talked to one of my long time friends Tim that works at my local speed shop American Motorsports and he said that the spindles are the same on the 89's whether they are 4 cyl or not. I guess that they went to the thicker spindles then. The GT stuff should work. I trust this guy, he has been building Mustangs and been around alot of Ford Cars all his life. I will be starting to collect my parts and keep everyone informed. If anyone want to call Tim to confirm his number is (407) 290-6565. They are open from 9-6 M-F and 9-3 Sat
http://www.americanmotorsports.net/