Dean,
The early 4.11 can't be fitted to the front casing of 3.89. (It's is all to
do with the pinion tail bearing). However there is an easily available 4.11
that does fit straight in to the later front housings - in the US it was
used for the 1972 Spitfire IV 1300 - in the UK it was extremely common and
new or secondhand ones are readily available (it was used in Marina 1300s
and Toledo 1300s)
John Kipping
----- Original Message -----
From: "Dean Tetterton" <richtr@erols.com>
To: <fot@autox.team.net>
Sent: Monday, January 06, 2003 3:02 PM
Subject: Need Spitfire Diff Help
> Can one of the list Spitfire racers tell me if an early Spitfire 4:11
> ring & pinion will work in a late Spitfire diff with a 3:89.
> I know they changed from a shimmed pinion to a crush spacer. If you shim
> the 4:11 pinion in the later case will it
> Work.
> Thanks
> Dean Tetterton
> TR3A racer
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