Glenn,
I think the 3.27 set will not fit the 3.89 casing unless you have it
machined. I think the cage is also different. 3.63 set as used on the
non US Spit 1500's I think is your only other option. Otherwise use the
complete 3.27 diff from a GT6
Peter Cebalo
73 Spit IV
Auckland, New Zealand
>----------
>From: trunnell@mindspring.com[SMTP:trunnell@mindspring.com]
>Sent: Thursday, 8 October 1998 11:47
>To: spitfires@autox.team.net
>Subject: diff gear ratios
>
>Hello all,
>
>I was looking through the Victoria catalog the other day and noticed that
>the ring and pinion for the GT6 is a 3.27:1. If I could swap this with my
>3.89:1 it would result in a 14% reduction in engine rpm in top gear. Is
>this swap possible and has anyone done it? Was the effect on acceleration
>so bad that it's not worth the trouble. I figure that if a stock motor
>doesn't have the torque to give decent performance I can modify it enough
>to get the torque and power I need. Anyone have any input?
>
>Thanks
>Glenn
>
>
>
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