I have the 300ZX 4 piston big brake kit with 13" custom rotor setup and I'm wondering if anyone would knows the exact dimensions of the rotor size to replace. I tried the 13" Cobra rotors but they did not fit without a spacer and I don't know the spacer size to that either. I also tried a stock 300zx 30mm rotor which also did not work.Can anyone plesse help me out?

 

https://maxima.org/forums/5th-generation-maxima-2000-2003/336134-300zx-bbk-questions.html

does anyone know the size of the ring inserts that fit the Cobra rotor for an 02 max or the rotors that jeff92se used to sell?

 

You might have an easier time finding new brackets that'll work with the more common 12.6" Maxima/G/Z rotors.