> -----Original Message-----
> From: spitfires-owner@autox.team.net [mailto:spitfires-
> owner@autox.team.net] On Behalf Of Jones Jarrod JCP
>
> Can anybody help me with which differential I need? I have learned that
> the
> ratios are different in some to others.
> Can this be identified on the old unit and if so, how?
Hi Jarrod,
Look at the underside of the nose casting on the diff unit. There are cast
webs running forward, beneath any grease or rust you will find a number
stamped along the centre web. An FH prefix diff internals have not been
revised during a rebuild.
> I have a 1977 Spit 1500 none O/D
According to my references a US spec car of that year should have the 3.89:1
unit.
Cheers,
Bill.
http://www.rarebits4classics.co.uk
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