[6pack] Lug nut thread size

[Raymond Hatfield]

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.