40 pulse vss to 1986 XJ6 speedometer

I have 5.7 LT1 and 4L60e transmission. Larry s electric FI harness. There is a speedo drive wire from the ECU to drive the speedometer. Is there an adapter that will work with the jaguar speedometer? Or is there a GPS drive for this speedometer?

3 options as i see it.

  1. Dakota digital convertor. i used this in my '71 lump for a spell.
    ECD-200BT: Electronic Signal to Mechanical Cable Drive Adaptor
  2. Send to Redline Gauge works to convert your stock speedo to VSS
    https://redlinegaugeworks.com/
  3. Send to Redline Gaugeworks to convert to GPS
    https://redlinegaugeworks.com/

jaguar -Specialties has a module for insertion between the PCm and the speedo head. I never got around tyo doing that.

I erred and instaled a Dakota digital modue at the VSS wires. not uite good enogh. had i used it in the speedo wire at the PCM, it should have worked.

The Jaguar Specialties speedometer module is your best solution. It was specifically designed to convert the GM LT1 and LS PCM speedo signal to work with the Jaguar speedometers.

Bob.

Absolutely right. I have on. Not in my car. In a can of speedom stuff. A project i never got around to. Now not like;y.