i was wondering if the rear calipers on 4 piston cars came with both solid and vented rotors?? if yes then how can i tell the diff if i only have the calipers??
thanks
Jason

 

You can read here and find out year specific information.
https://www.rx7club.com/2nd-generation-specific-1986-1992-17/specifications-what-did-2nd-generation-rx-7-come-w-options-standard-features-249616/

 

The calipers for the non-vented rotors have a very narrow mounting bracket. They'll have casting #1315 on them and they look like this:



The vented rotor calipers have a wider mounting bracket to accommodate the wider rotor. They have casting #1313 on them and they look like this:



Hope this helps.

-chris