Brake Rotor sizes
 

i wanted to get some brembo front rotors off of ebay for my 1990 non turbo. but some of the auction sites say that the rotors will fit any 6/89 non turbo and so on. My 300zx was made in 3/89, so my question is is my size rotor different for the other year non-turbos? Or are they all 30MM? thanks!

your rotors are 26 mm
so you would either have to find some 26mm to fit the z or get new 30mm calipers and rotors

EDIT: just found out they are 26 mm...and i dont know about the date
i have heard 6/89, 3/89 and 2/89

so all i would have to do to get the new rotors would be to get the proper calipers to fit them? or is there anything else i would have to do? Also, are there any other year Z's that had 26mm rotors that i could use?

i believe so...that is what i am doing because the owner before me bought brembos, but they were the 30 mm ones, so i have to buy new calipers, which are expensive(almost 100)

you can just buy 26mm rotors too. Some of the aftermarket sellers might have them if you call, or you can just get stock replacements.

ConceptZperformance has 26mm. they run 400 for all 4 of them i believe. (cross drilled, slotted, or crossdrilled and slotted.)