Hi Jim,
Having been a Triumph dealership mechanic when the cars were new,
(1966-1977), let me assure you that the cars DID have an overdrive emblem
on the top right rear valance in addition to the "O" at the end of their
commision number. The emblem was held on by the pegs on the TRIUMPH
emblem. Take care - Bob Wanta, Bob's Foreign Auto, www.iconn.net/bobsauto
70 E-Type Series 2 Roadster
70 GT-6+
74 Spitfire
74 TR-6 (with overdrive and emblem)
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> From: James H. Davis, Jr. <jhdavis6@juno.com>
> To: triumphs@autox.team.net
> Subject: Re: wiring and OD tranny for TR6
> Date: Monday, July 28, 1997 8:49 PM
>
> Van,
> Rubber bumper TR6's didn't come from the factory with an "overdrive
> emblem" on the top right rear valance. If you have that emblem some PO
> added it, maybe because they thought it looked nice. Overdrive cars came
> with an "O" at the end of their commission number, for example:
> CF55693UO.
> The "J" type o/d gives a ratio of.797 in 4th gear and with a
> non-overdrive final drive ratio of 3.70 that equates to a ratio of 2.95
> in o/d.
> Hope this helps,
> Jim Davis
> Fortson, GA
> '75 TR6 CF38690UO
> '75 TR6 CF37325U
>
> On Mon, 28 Jul 1997 15:58:58 -0400 (EDT) "Van S. Griffin"
> <van@nucmar.physics.fsu.edu> writes:
> > 2) What is the story on TR6 overdrives. They seem to be
> >precious
> > objects. What was the ratio (ball park) of OD's to non OD
> > TR6's. I have a '76 that has the overdrive eblem on the back
> >but
> > someone has nicked the original unit and replaced it with a
> >non-OD.
> > No sig file, Van
> >
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