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RE: [6pack] caliper bolts

To: "Robert Lang" <lang@isis.mit.edu>
Subject: RE: [6pack] caliper bolts
From: "Navarrette, Vance" <vance.navarrette@intel.com>
Date: Wed, 3 Oct 2007 15:14:26 -0700
        Robert:

        You are not being a nit picker. This is good information, I
stand corrected.

        Thanks,

        Vance

-----Original Message-----
From: Robert Lang [mailto:lang@isis.mit.edu]
Sent: October 03, 2007 2:58 PM
To: Navarrette, Vance
Cc: 6pack@autox.team.net
Subject: RE: [6pack] caliper bolts

Hi,

Not to be a nit-picker, but the caliper bolts for late TR6 are actually
specialty fasteners. The metric clipers have the holes in the mounting
ears reamed to the metric size. The factory bolt has a 7/16-20 thread,
but
the shank of the bolt is a non-english (e.g. metric) diameter. This fact

is well documented in the "Toyota 4-pot cliper conversion" articles.

Now, you could use a 7/16-20 bolt and make a collar to fit the hole in
the
caliper, but then you'd be spending money close to the purchase cost of
the specialty fastener from Moss or TRF.

But these particular bolts are actually a special bolt and you really
need
to use the right part for the job. Your point about not using grade 2 is

good advice. You want strong shear strength in these bolts because they
take a LOT of shear force when you slam on the brakes.

regards,
rml
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