I have some aluminum R32 GTR aluminum calipers. I found that out they are GTR not GTS after trying to put Z32 rotors on and they are a little small. Z33 rotors are almost exactly the same dimensions as GTR's except a bit thinner, and the VR4 rotors a almost an exact match too, will either of these work?

 

why dont you just buy the proper rotor for the caliper?

http://www.courtesyparts.com/Merchan...x_nms_gtrbrake

^^^^if the calipers dont look like that, then you dont have GTR r32 calipers. If you do then the link is where you buy them.

 

Was looking for a lower cost alternative. That and ease of getting a replacement if something were to happen (min downtime)

 

An r32 gtr should have the same nissan badged calipers as a z32 30mm I believe. If they are Brembos, they are from a 33 on and would be the same as a 350z track

 

They aren't the same as the Z32's because the Rotors are a little more than 1/2" too small. Also, they are Sumito's not brembo's

 

never mind...they are significantly larger diameter. Specs say 324mm, but that may be the vspec

 

The R32 GTR's rotors are 297, I have heard the IS300's rotors work with a 3mm spacer

 

I know for a fact the distance from hub on the GTR are greater thant he z32

the z32 30mm will not work with the r32 GTR non vspec.
i know for a fact lol.

 

Well, I know for temporary, I am using Z32 rotors. Only prob I am having right now is I am not using about 1/2" of the pads. I know its not the best combo by far, but when I get new pads, I am going to see how the IS300 rotors work.

 

z32 rotors are either 280mm x 26mm or 280mm x 30mm while the r32 rotors are 296mm x 32mm

 

To help solve this problem about size:

https://www.s-chassis.com/forums/suspension-chassis-brakes-15/ultimate-rotor-thread-21575/

That thread will give you the rotor sizes, nothing else really fits and I would not recommend trying anything else except what was made for it. I'm running into a similar problem, but my problem is looking for pads. Rotors seem fine. For now.