Post by
cdlong »
https://forums.nicoclub.com/cdlong-u11619.html
Thu Oct 20, 2005 5:37 pm
the aluminum calipers ran from '90-92.5, after that they were iron.
it has been said that nissan switched to the iron because they were having problems with warping rotors. the iron calipers can absorb more heat which should lessen the problem.
with a much lighter car like the 240 it isn't a problem so most people use the aluminum calipers to take advantage of the lighter weight.
the rigidity might be higher with the iron, but they are so stiff anyway it doesn't matter. i have full z32 calipers, stainless steel lines and a z32 MC and the pedal is really stiff, just the way it should be. the thing barely moves once you get past the initial slop.
i think that's a driver's side rotor, but it doesn't really matter.