what yr tt brake calipers fit on 4th gens?

 

All of them.

 

even a 89?

 

There was no Twin Turbo Z car (I assume that's what you meant) in 89.

 

what about in japan? im pretty sure they had tt in 89.

 

Oh jeebus!

First off, no they didn't. Second, what's your point?

 

How bout you tell us what calipers you have so we can tell you if they fit.

 

Basically all TT Z32 Calipers fit Even if the car has a production date in 89. It must be a Z32. There are two types of Z32 Calipers. Iron and Aluminum. The Al calipers can be found on pre 93 Z32 300ZX's and on 93 and up you will get Iron.

 

Make sure they are the 30mm versions and not the 26mm versions. Both alum and steel 30mm versions will work but the steel versions are heavy as hell.

 

i should mention that the 26mm version came on the NA cars

 

Actually they did, Z32s were produced in Japan from 1989 to 2001.

 

First year only... they were raplaced with larger 30mm versions starting in 91.

 

What is the advantage of using their brake calipers over ours???

 

4 Piston Calipers... 2 on each side of the rotor... much more stopping force.