Speedo compatibility
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Cargo Master
Joined: Sep 2004
Posts: 2,757
Likes: 138
From: Alberta Canada
Speedo compatibility
I haven't looked at my stock mechanical speedo that closely but wondering if it is possible to marry it up with early '90's mechanical cable and AOD. I know that the gauge increments are incompatible but could it be buffered out with different gear in AOD tranny ? 
Tom
Tom
Roast em' if you got 'em
Joined: Mar 2005
Posts: 22,013
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From: Rio Rancho, NM
bump
Tom,
I'm not too familiar with Ford tranny's. Does the AOD have a place to hook up a mechanical cable? I know that when GM was starting to switch over to digital dashes and electronic speedos there was a unit (transducer) that fit in the tranny in place of the doo-dad the speedo cable connected to. It was mechanically driven from a gear on the tailshaft and would convert it to an electrical impulse for the speedo, you could change the gear ratio between the speedo drive and driven gears.
Basically if the AOD trannys have something similar then I think it would just be a matter of changing it out to an earlier style cabel set-up and getting a cable.
Bobby
Tom,
I'm not too familiar with Ford tranny's. Does the AOD have a place to hook up a mechanical cable? I know that when GM was starting to switch over to digital dashes and electronic speedos there was a unit (transducer) that fit in the tranny in place of the doo-dad the speedo cable connected to. It was mechanically driven from a gear on the tailshaft and would convert it to an electrical impulse for the speedo, you could change the gear ratio between the speedo drive and driven gears.
Basically if the AOD trannys have something similar then I think it would just be a matter of changing it out to an earlier style cabel set-up and getting a cable.
Bobby
Hotshot
Joined: Oct 2009
Posts: 16,188
Likes: 4,792
From: Burbank, WA
There are shops that can build custom speedo cables with the correct ends that would work for your application. It's not a big deal. Check your yellow pages or a reputible mechanic shop for a recommendation. The driven gear on the transmission end of the cable is the part typically changed to calibrate the speedo.
Thread Starter
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Cargo Master
Joined: Sep 2004
Posts: 2,757
Likes: 138
From: Alberta Canada
Thanks guys
Still working on which instrument panel I'm going to put back in; I'm trying to put the faceplate of stock speedo on a '90's speedometer. Going for that "stock" look.
Should get back at the instrument cluster, when I get home this week.
Tom
Should get back at the instrument cluster, when I get home this week.
Tom
