Ric,
since you have a 5-speed, all bets are off. The speedo is connected to
the tranns, and the Datsun trans has a different speedo drive ratio than
the ribcase. You can buy a (somewhat expensive) angle-drive adapter from
Rivergate that they will custom gear for your car and whatever speedo you
have, of you can try to get lucky by using different drive ratios
available from Nissan.
If you want to get wild, you can ask Frank "we tight" Clarici: he is using
a 140mph MGB speedo with a 120mph Spridget face with good results...
You can also have your speedo recalibrated by a specialist.
I can't tell you what kind of speedo yours is, but if it fits the opening
in the dash, I think it is the speedo that was used until the start of the
plastic dash in '68 (?). So any tach before then would work and look
good.
Ulix
On Sun, 16 May 1999, Ric Otte wrote:
> Hi,
>
> I've got a Sprite Mk II that does not have the original speedometer in it,
> although it does have the original tach (driven from the generator). I
> don't know if the speedo is the correct one for my rear diff. I'm thinking
> of changing to an alternator and electric tach, and also wanted the tach to
> match the looks of my speedometer. I assume there are several different
> models out there. I recently put in a datsun 5 speed, and before I hook up
> the speedo I want to make sure I have the correct one for my rear diff. I
> have a 4.22 rear diff and so I want a speedo that is calibrated for that,
> if possible.
>
> My current speedo says this on the face:
> SN 6142.00 1472
> It is all black with white letters and marks.
>
> Does anyone know what year cars would have speedos and tachs that would be
> appropriate? And how do I recognize them; what numbers do they have on
> them (since they may be like mine and not original to the car)?
>
> Since I want to get an electric tach I thought this would be the time to
> get matching speedo and tach, and a speedo that is correct for my rear diff.
>
> Thanks very much,
>
> Ric Otte
>
>
>
Ulix __/__,__ ___/__|__
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'67 Sprite '74 X1/9
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