[DeTomaso] a few good bolts

[Mike Thomas]

Contact either Dennis Quella at Pantera Performance Center in Castle Rock,
CO, or Bobby Byers of Precision Proformance.  You can find contact info for
both on the POCA website, www.poca.com, under the vendor list.  What Byers
does, and probably Dennis as well, is to by the longer bolts with the solid
shank and cut them down to the right length.  You probably won't find Grade
8 the right length with the shank.  When you put the bolts back on, you want
to slip them into the ZF flange facing out.  It's a bit tricky getting them
in, but if you rotate the flange to just the right position, you can slip
them in at an angle.  Be careful that all the bolts are pushed through both
the ZF and axle flange when you roll the car back and forth to get all the
way around the flange when tightening as it's very easy for one to slip back
towards the ZF, get cockeyed, and trash the threads as you move the car.
Tighten all nuts as tight as you can (according to the German torque method,
the Guttentight method (;-)), go for a drive or two, then check the
tightness again after things cool down.  Only one slightly loose nut/bolt
can cause vibration in the driveline that you can pay hell trying to figure
out.

Good luck
Mike Thomas
Yellow '74 L #6328
VP, POCA/Panteras Northwest
 

-----Original Message-----
From: detomaso-bounces at realbig.com [mailto:detomaso-bounces at realbig.com] On
Behalf Of B Hower
Sent: Tuesday, December 27, 2011 5:36 PM
To: wkooiman at earthlink.net; detomasoregistry at gmail.com; davel at emspace.com;
detomaso at realbig.com; oldwheel at mts.net; MikeLDrew at aol.com
Subject: Re: [DeTomaso] a few good bolts

Mike,
 
Who supplies the proper bolt? What size do I ask for?
 
Bud #3400 ---- could also use some of same
 
 
 
--- On Wed, 12/28/11, MikeLDrew at aol.com <MikeLDrew at aol.com> wrote:


From: MikeLDrew at aol.com <MikeLDrew at aol.com>
Subject: Re: [DeTomaso] a few good bolts
To: wkooiman at earthlink.net, detomasoregistry at gmail.com, davel at emspace.com,
detomaso at realbig.com, oldwheel at mts.net
Date: Wednesday, December 28, 2011, 12:57 AM



In a message dated 12/27/11 16 45 45, wkooiman at earthlink.net writes:


> I doubt that the shank provides any shear support.  Isn't it the 
> friction from the clamping force that keeps it all together?
> 

The torque is transmitted by the shank of the bolts; the flat flanges are
just there to support the bolts and the nuts.   That's why it's crucial to
NOT use ordinary bolts, which would be threaded where they pass through the
flanges.   You must use bolts with a proper shank.   You can make them
yourself by cutting down longer bolts (longer bolts will normally have a
certain amount of the shank un-threaded), but the smart/easy thing to do is
just buy the proper bolts in the first place.

Mike
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