Then the writer had better know what he has before he asks for
re-calibration otherwise what is the speedo shop going to use as a base
line?
----- Original Message -----
From: "Randall" <TR3driver@ca.rr.com>
To: "'Triumph List'" <triumphs@autox.team.net>
Sent: Saturday, October 23, 2010 9:42 PM
Subject: Re: [TR] speedometer calibration
>> Assuming that you did not change the Rear End gearing there
>> is no need to
>> re-calibrate the speedometer when installing an OD
>> transmission.
>
> Actually, there might be. If the OD came out of another car, or a late
> TR6
> (J-type OD), the speedometer drive gears may be "wrong". There are
> several
> people selling ODs on eBay, claiming they are for Triumphs when they
> actually came from a Volvo. Volvos do not use the same drive gears.
>
> Plus, the gearing changed between early and late TR6. IIRC the change
> happened at the same time they switched from A-type to J-type.
>
> Randall
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