Hi Tim,
The best way is to just have your existing speedo recalibrated. I
sent mine to Nisonger in NY years ago, and they had a procedure to go though
involving counting turns of the rear wheel to turns of the speedo cable. Any
good instrument specialist should be able to handle it for you easily. That
way your speedo will still match the rest of your instruments.
Jon Arzt
Omaha, NE USA
----- Original Message -----
From: "Tim Stiffy" <tstiffy@pulsenet.com>
To: <alpines@autox.team.net>
Sent: Saturday, February 08, 2003 4:37 PM
Subject: Overdrive Speedometers
> Hi List,
> Last fall I finally installed of my overdrive in my S1 (B9009694). To
complete
> the project, I need to replace the speedometer with one calibrated for an
> overdrive. My SI has the standard 3.88:1 rear end. The transmission I
> installed is a SV. My question to all is, what S/N speedo do I need. Do I
need
> a speedo for a SI or SV?
>
> Here is what the parts book lists for overdrive speedometers in MPH:
> S/N 6117/02 - Up to B9105974
> S/N 6117/11 - From B9105975 up to Series 3
> S/N 5324/18 - Series 3
> S/N 5324/23 - Series 4
> No listing for Series 5
>
> Will it make a difference with my S1 being positive ground?
> Sunbeam Specialties list different speedometer cables for SI thru SIV, SV
> (non-overdrive), and SV (with overdrive). Do I need to change the cable
also?
>
> Can anyone help? As always, I'm appreciative to all replies.
>
> Tim
> Bentleyville, PA
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