i was at autozone the other day and was trying to special order a brake master cylinder for my 88 turbo 2 rx7. They asked me if it was Standard Suspension or Heavy duty suspension? How do i know if i have either?

 

TII will have "heavy duty" suspension, as will convertibles

 

do you have 4 piston calipers & 5 lugs up front? that is considered the heavy duty

and if you are not in huge hurry i think they got them alot cheaper at rockauto.com

about $28