Clark,
Being in the middle of my trans swap project, I can assure you, the only
differences possible (in North American models) are that the rear ends in MKI,
II, III, and IV all have 4.11:1 gearing and the 1500's have 3.89:1. No
difference in gearing for any of those models equipped with O/D. Now, should
you take the O/D trans from a late model 1500 and put it into an early Mark
IV....well this seems to be my situation...so figure it out and let me
know...How will this affect my speed shown on speedo vs. actual (or what the
CHP says he clocked me at) ???
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From: CWNicholls@aol.com[SMTP:CWNicholls@aol.com]
Sent: Sunday, June 23, 1996 5:01 PM
To: triumphs@autox.team.net
Cc: ngaard@utxvms.cc.utexas.edu
Subject: Overdirve Diff in a Mk3 Spit??
Michael Noerregaard <ngaard@utxvms.cc.utexas.edu> wrote:
My Mk.3 definitely needs a new set of tires - when I bought it in the spring
it had 205's on it - but they are out of balance, and are TOO big for the
car - puts too much load on the steering mechanism, and there are just not
enough space for them for the bonnet. That's why I am in the market for a
new set - and was wondering what size to go after? 165's (orginal?), 175's,
185's - and 60's or 70's ? What sizes will fit? My speedometer is out of
wack any way due to an overdrive differential and a non-overdrive gearbox,
so.....
I don't remember that there was a different diff for the overdrive unit??
Perhaps someone installed a different diff or perhaps speedo gear or even a
different speedo...
Please cc: me direct if there is any reply..
Clark
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