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Re: OD Speedo numbers

To: RossOvercash <jroverca@tiac.net>
Subject: Re: OD Speedo numbers
From: Rick Brown <mgrick@ptd.net>
Date: Thu, 23 Apr 1998 19:12:53 -0400
RossOvercash wrote:
> 
> I know ther are no stupid questions but what is a CB or RB car?  I have
> never heard of those identifiers before
> 
> Safety Fast!!
> 
> Ross Overcash, 74B, NAMGBR 2-1172, Ayer, MA
> http://www.tiac.net/users/jroverca/index.htm
> 
> > -----Original Message-----
> > From: owner-mgs@autox.team.net [mailto:owner-mgs@autox.team.net]On
> > Behalf Of Bert Palte
> > Sent: Wednesday, April 22, 1998 3:09 PM
> > To: Mike Lishego
> > Cc: mgs@autox.team.net
> > Subject: Re: OD Speedo numbers
> >
> >
> > At 13:20 22-04-1998 -0400, Mike wrote:
> > >Is there a numeric difference between a regular and overdrive
> > speedometer?
> >
> > Straight from memory, without checking, Mike. (I've had my OD gearbox in
> > cartons for about two years, now... Still not under the car...
> > Lack of time...)
> >
> > For GHN5-cars the (gear ratios of the speedo) gears in the gearbox (or,
> > at the rear of the OD) are different, depending only on whether you have a
> > CB or RB car.
> > AFAIK when you change from a non-OD to an OD box from the same
> > 'group'(i.e.
> > CB OR RB), you don't need to change the speedo.
> >
> > When you change from a CB non-OD box to a RB OD-box (like I did,
> > or rather,
> > intend)
> > you have to change either the speedo or the gears. (I chose for
> > the latter).
> > The difference in speedo indictation is then only 1 percent, that is,
> > negligible.
> >
> >
> > >In a similar vein, can anybody tell me the approximate weight of an
> > >overdrive transmission, without fluid?
> >
> >
> > Ball park figure, without checking, about 100 lbs / 45 kg
> >
> >
> > Bert
> >
> > who has a CB MGB and a RB OD box,
> > thus now having the speedo gears for a RB OD box available for
> > whoever needs them....
> >
> >
CB - chrome bumper
RB - rubber bumper

:)

Rick

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