What other cars would my 18's fit on ?? Im thinking most all 5 bolt gm like a sts cadilac ?? What about other brands ?? Will they fit a C4 and whats the factory C4 backspacing ??

 

the Fbody bolt pattern is 5 x 4.75 .. most GM cars are the same, except B bodies they are 5x5 i think

caddy's might be the same as i think they are on the same chasis ...

 

From what I've read, as I understand it, 5-lug Beemer wheels fit our cars, so I guess they would go both ways.

 

Sweet ,

Anybody know the c4 offsets ??

 

On a 9.5 width wheel,7.4 inch is the factory back space for most c-4's.Early c-4 [pre 89] had less backspacing.A fwd caddy[such as an sts] is 5x115 mm bolt circle.Not the same as your 5x4.75 wheels.many fwd full size cars[bonny's,grand prix etc]are the metric 5x115 bolt pattern[same 12x1.50mm thred pitch though]Hope this info helps.