[6pack] Lug nut thread size

[Raymond Hatfield]

Ok, did a little further research, and the studs being referenced are ARP P/N 100-7708 "12mm x 1.50 Late Model GM WSK"


--- On Wed, 7/16/08, Raymond Hatfield <iron_horse819 at yahoo.com> wrote:

> From: Raymond Hatfield <iron_horse819 at yahoo.com>
> Subject: Re: [6pack] Lug nut thread size
> To: 6pack at autox.team.net
> Date: Wednesday, July 16, 2008, 10:34 AM
> According to my notes, Hugh Barber was able to use ARP
> wheels studs on both his front and rear hubs.  IIRC, these
> were the late GM disc brake type studs, but you might want
> to contact him to be sure. 
> 
> He accomplised the installation on the rear hubs by
> grinding a "half moon" slot on the flat portion
> of the bearing carrier.  I have a photo that he sent me if
> you need it
> 
> Raymond L. Hatfield
> 
> 
> --- On Wed, 7/16/08, Robert Lang <lang at isis.mit.edu>
> wrote:
> 
> > From: Robert Lang <lang at isis.mit.edu>
> > Subject: Re: [6pack] Lug nut thread size
> > To: "Scott Tilton"
> <triumph.tr4 at gmail.com>
> > Cc: 6pack at autox.team.net
> > Date: Wednesday, July 16, 2008, 10:05 AM
> > On Wed, 16 Jul 2008, Scott Tilton wrote:
> > 
> > > on a related note - has anyone ever put longer
> studs
> > onto the rear hub of a
> > > TR6?
> > 
> > Yep, been there, done that.
> > 
> > > I'm sure people have.
> > >
> > > So the more appropriate question is - has anyone
> done
> > it with an off the
> > > shelf part and without having to modify the TR6
> hub. 
> > (drill out the hole to
> > > accomodate a larger diameter knurl)
> > 
> > I wound up with two possible solutions. I forget the
> exact
> > dimensions, but 
> > there are Mr. Gasket 3" studs with a knurl that
> is
> > almost exactly the same 
> > as the stock studs which I seem to recall as .560 or
> > something like that. 
> > These are 1/2-20 studs. Nice and beefy.
> > 
> > If you want off-the shelf from the go-fast places,
> Moroso
> > has 1/2-20 studs 
> > 3" long that come in 5-packs. Those have a larger
> > knurl (.615???) so you 
> > have to ream the holes out to get 'em to fit. I
> was
> > doing a pile of hubs 
> > when I did this, so I contacted a tool supply place
> and got
> > a proper sized 
> > reamer and then get the hubs and tool mo a machinist.
> I
> > still have the 
> > reamer (somewhere) if you go that route.
> > 
> > If you need the Moroso part numbers, let me know. I
> have a
> > few spares in 
> > the garage (in the blister pack), but I got 'em
> from
> > Summit Racing.
> > 
> > Now the bad news - I'm pretty sure the only way
> you can
> > get 3" studs in is 
> > to pop the hub apart. The long studs won't clear
> the
> > bearing carrier.
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