Rear GTR Brembo question

[Scorch95]

I bought a set of rear brembo calipers I'm looking to install on a ’95 Z32 and I am wondering if these are in fact, the correct calipers. They are supposedly either R32 or R33 brembos and the bolt holes match up but they appear to use a m10-1.25 bolt we're as I was expecting a m12-1.25 bolt. Can anyone confirm the stock size bolt that mounts the caliper to the upright for the bembo?

 

Another question, is the rear non-brembo r32 gtr caliper the same as the z32 caliper?

Edited September 6, 2020 by Scorch95

[niZmO_Man]

R32 GT-R Brembo has the skinnier bolts IIRC, however, they should be 1.5.

Got pictures?

[djr81]

Skinnier yes, but isnt it M14 & M12 rather than M12 & M10 as posted above?

[Scorch95]

You're right, I meant 1.5. Did the R33 have smaller bolts as well? I was under the impression they were identical but I admit I may be mistaken. Sorry for the bad photo quality. Does anyone know if the r32 non brembo rear brakes also used a m10 bolt? I will probably look for some kind of sleeve that's an m12 od while m10 id to take up the slop. 

My understanding was that the m14 was on the r34 and 350z front brembos. 

Edited September 11, 2020 by Scorch95

[GTSBoy]

Front caliper bolts on R32 & 3 Sumitomos and Brembos are 12mm. R34 front Sumitomo 14mm. I thin R34 front Brembo are 12mm.

I thought they were all 12mm at the rear.

[niZmO_Man]

I have the R34 GT-R front Brembos, 14x1.5 mm

I haven't put the rears on yet haha.