front calipers
 

I need to replace my front calipers (looking for used or may have them rebuilt) on a early 1986 951. It seems the 87 and later calipers are easier to find. Also, I've been doing research on calipers and it seems that the 87-88 Turbo front calipers have bigger pistons than the 86. My question is, will the later calipers bolt to the 86 spindle and work with the 86 hub and disc?

Thanks!
SmileWavy