|
Sorry, I still do not understand your question. You are asking about rear rotors for a B13, but I do not understand the part about 91-94 calipers. Are these calipers for the rear or the front? If they are for the front, then there is no need to change the rear. If they are for the rear, then there is only one factory set up for discs on the rear of a B13 (see below).
Anyway, here are some things that might be helpful that I know to be true.
1. The NX front rotors will only work on the front of a B13. They are way too big for the rear.
2. On a B13, the front rotors are vented and the rears are solid, so the fronts are much thicker.
3. The Factory Service Manual shows 2 brake options for the rear of the B13. One is the drum brake set up for the 1.6L Sentras. The other is the disc brake set up. If you have rear discs in a B13, it looks like they are all the same. The disc brake model for the rear is AD7HA, and the rotor dimensions are 234mm x 7mm (9.21" x 0.28") for all B13 applications.
I hope that this helps.
|