Patrick,
Yes, you can update an existing tranny with an Overdrive, but as you
mentioned the output shaft is different, so it has to be replaced with
one specifically manufactured to support the overdrive unit.
Joe
P.S. It's much easier and probably cheaper to simply buy an Overdrive
Tranny, though!
Bowen, Patrick A. RP2 wrote:
>
> Michael, I recently converted my Spitfire from a 4 speed to an overdrive.
> Assuming your tranny is setup the same as a Spitfires, there is very little
> you have to do. You must replace the entire tranny with one that has an
> overdrive unit, someone correct me if i am wrong, but you cannot simply
> put an o/d unit onto your existing tranny, the output shaft is different.
> After that all you need is a o/d driveshaft, a different tranny mount, the
> gearshifter, and that is it. The J-type overdrive doesn't require the
> relays that the d-types require, so the wiring is very simple. I can fill
> you in, when you are ready. I don't know the differences with your car,
> but I hope this fills you in.
>
> At 01:38 PM 10/6/98 -0400, Michael Graziano wrote:
> >Hello all.
> >
> >I've been lurking on the list for a few weeks now, and finally have a
> question I hope you can help
> >me with.
> >
> >I have a '78 MG Midget (with the Triumph 1500 engine) and the 4 speed
> tranny. I'd like to convert
> >to a 5 speed or a 4 speed w/ overdrive.
> >
> >Do any of you have any information on existing conv kits or o/d units for
> sale? I'd appreciate any
> >help you could offer. I'm in the NYC area.
> >
> >Michael
> >
> >'78 Midget
> >'87 300zx
> >'98 French Poodle/Wheel Chock
> >
> >
> Patrick Bowen
> '79 Spitfire
> Jacksonville FL
--
"If you can't excel with talent, triumph with effort."
-- Dave Weinbaum in National Enquirer
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