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32 Brakes On R34 Gt

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Legionnaire Collaborator

Legionnaire

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What NA is it? I have no info on 20GT's, but RWD 25GT's have M14 front caliper holes, so R32 brakes won't "bolt right on" without some drilling or some helicoil action, as they have M12 bolts.

If it's 4wd, both GTSt or GTR brakes will bolt right on.

Regarding BMC - you should really check what's your current BMC, it'd have either BMxx designation, where xx are digits, or diameter in inches cast on the body.

You'll need no less than 15/16 BMC (also known as BM44) for 4-pot front and 2-pot rear sumitomos,

Better feeling with 1" BMC (aka BM50), R34 GTT has it from factory.

7/8 (what is it, BM38?) is too small, 1 1/16 (BM57) is too big for sumitomos IMO.

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It's. 98 r34 25gt so he front cailper whole is 14? Meaning they are the same as the gtt? And if i wanted to fit gtst or gtr I would have to get some sleeves made up that reduces the wholee to 12m? And or the rears would the gtr ones fit? Or same thug goes for it as above?

And I checke the BMc is it the bm50

bubba Grand Master

bubba

Posted
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I've just looked into this and my parts guy reckons the early 34 GT's are 12mm bolts and the later ones are 14mm.

Luckily for me I run adapter brackets so re-drilling/tapping for 14mm is a non-issue.

If I was the OP, I would be going for 32R or 33GTSt brakes over the 32gtst (sell your 32gtst brakes to some silvia guy and buy some 33gtst).

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