http://my240.epijunkie.com/5_Lug_and_Z32_B...#Front_calipers
Front calipers
Skyline GT 1998-2002 (R34)
296mm x 30mm Rotor
Lug: 5
Conversion Lines Needed?: Yes
Wheel Clearance: Will fit Z32 and S14 SE wheels.
Skyline 1998-2002 GTT (R34)
310mm x 30mm Rotor
Lug: 5
Conversion Lines Needed?: Yes
Wheel Clearance: Need larger wheel.
Skyline 1998-2002 GTR (R34 - Brembo)
324mm x 30mm Rotor
Lug: 5
Conversion Lines Needed?: Yes
Wheel Clearance: Need larger wheel.
Rear Calipers
Z32 (1990-1996 300ZX),
R32 (GTS, GSTS, and GTR 1989 - 1993),
R33 (GTS and GTST 1993-1998),
and R34 (GT, GTT 1998-2002) use a
297mm x 18mm Rotor - Internal drum e-Brake