The only application the R32 suspension did not line up properly was on an 240sx i believe, but the R33 would be the better fit but i did some inquiries and it hard to find one complete. The font if you want to go five hole the A33 spindle should work fine and it is easier to find, and you could find the front brakes 4 piston,here on trinituner i guess, i do believe 4 piston comes with the 300zx but i'm not 100% sure
i hope any of this helps!
