First of all it is very rare that the carrier bearings need changing, the
LM67010 show it is a late type front case. The bad news is that the 3.27
diff has a special carrier and a 3.89 one won't fit, you have to fit a
crownwheel and pinion plus carrier with 3.89, 3.63, 4.11 or 4.55. The good
news is that 3.27s are getting rare and expensive and are worth much more
than any other ratio.
If you need any more help let me know.
John Kipping
----- Original Message -----
From: <fpspitfire@insightbb.com>
To: "John Kipping" <johnkipping@inet.net.nz>
Cc: <Herald948@aol.com>; <fot@autox.team.net>
Sent: Monday, February 14, 2005 4:57 PM
Subject: Re: GT6/spitfire differentials
> John,
>
> I haven't pulled the carrier bearings off yet...so they are still sitting
on
> the carrier...just need to press them off...much easier said than done as
I'm
> short a press right now. However, the race is off and the number on it
which
> is a LM67010 timken bearing....in good enough shape it makes a person
think
> about not throwing them away. This would suggest that it's a very late
diff.
> Andy Mace also noted that it probably would only have 4 holes drilled for
the
> spring fixing...this is correct.
>
> I talked to the guy whom I purchased the car with...I took the diff and
front
> suspension. It was a super late car...manufacture date of Aug 1973...late
> enough it had a swing spring setup and automatic adjusters for the rear
drums.
>
> Next questions for you John, can I take the 3.27:1 crown and pinion off
and
> replace it with a 3.89:1 using the same carrier? Can the carriers be
> interchanged between diffs (73 to an earlier or vice versa) by changing
the
> carrier bearings? The easiest thing for me to do would be to just change
out
> the crown and pinion for what I want and now ship a whole diff across the
> country, if the carrier is necessary I'd like to just change it out and
use
> the late bearings...
>
> these types of things make a person think...why make that change during
the
> last year
>
> aaron
>
>
> > The carrier bearings were changed for the Mk III and go with the case,
do
> > you have the old ones to get the numbers off? Early ones have much
bigger
> > rollers and have numbers (from memory) 15123/245, later ones have
smaller
> > rollers and a smaller O/D with numbers 67048/10
> > John Kipping
> > ----- Original Message -----
> > From: <Herald948@aol.com>
> > To: <fpspitfire@insightbb.com>; <fot@autox.team.net>
> > Sent: Monday, February 14, 2005 12:00 PM
> > Subject: Re: GT6/spitfire differentials
> >
>
>
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