I am trying to put a stock look buick rally on my gs400 conv. with the stock four piston disc brakes. I understand factory rallys were the chevy style rally but I am selling the car and can't go that extreme. Does anyone know what , if any , of the different buick rallys 14 or 15 inch will work?
Original 68 Buick chrome plated wheels won't fit with the 4 piston calipers. That's why you were only able to get them with the V6 Rallye wheel ( chevy rallye rim with Buick centers, very hard to find). You can put on late model Regal chrome plated wheels which were available till 87. They are cosmetically almost the same as late 60's - 70's chrome wheels but with very small differences only a trained Buick person can spot. Stock size would be the 14" but 15" would fit without any issues (unless you want wide tires in back, 68-69 rear quarters don't like them). They do make the correct reproduction "finned" centers for the chrome wheels. Hope this helps.
That does help. Thank you very much for taking the time to reply. I will try and search out a set. If I understand correctly, any 6th generation rim from the chart either 14" or 15" will work