> I am finishing the race preparation and restoration of a 1954 tr2
> based Devin. I would like to use the stock Jaeger speedometer in it,
> but I don't know where a cable is driven from.
The TR2 had it driven from the tranny, I assume the Devin would too.
> Also, as I am not sure
> if it is driven from the wheels or tranny I must ask that if it is
> the tranny, then will it work with my all syncromesh tr4 gearbox
Should work fine, however the calibration will be for original size tires &
diff. All TR2-4 (and on partially into TR6) used the same speedo gears in the
tranny (speedo cable turns at 2/5 driveshaft speed); the calibration for diff &
tires was done at the speedo head. If yours doesn't match, you can have a
speedo shop make up a ratio adapter for you. The calibration number for the
speedo head is printed on the face, and is turns per mile at the speedo cable.
> Any help is apreciated and I will need a cable and drive for
> the gauge so if anyone has one to sell, just let me know.
Cables are available new from the likes of TRF, Moss, et al. The standard TR2-4
cable is 69" long, the overdrive cable is 96". The TR6 cable also has the right
ends, and as I recall is in-between these two lengths. They're only $15-20
each, hardly worth fooling with a used one IMO.