For racing you must fit a big type diff (ie Spit IV etc), for tarmac a
Quaiffe is OK and totally indestructable. You'll have to work out which is
the best ratio for you a 4.11 or a 4.55 - I wouldn't advise an ovedrive for
serious racing as it uses valuable brake horse power.
There are two sets of close ratio gears available, the GT6 set which is very
close or a Marina 1800 set which is in between, there are ways of having a
heavy duty gearsets built into non overdrive gearboxes but I would strongly
advise dealing with Canley Classics for all these queries in any case - and
they are the only source left for the big diff 4.55 crown wheel and pinions.
John Kipping
----- Original Message -----
From: <cj123@ofir.dk>
To: <fot@autox.team.net>
Sent: Monday, July 28, 2003 8:51 PM
Subject: diff
> i need a new diff. i now have a std. 4.11, but while at it, i was thinking
of
> getting a limited-slip, what is the "best" for track and road, Quaife ABT
?
> i4m also thinking of changing the gearbox to a OD (when driving to races
on
> the road) would it be possible to fit GT6 gears so i get close ratio ?
>
> Christian
> Denmark
> spitfire mk3
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