I am thinking of putting my five speed manual setup in my 85 sd. I seem to remember that the 85s have some sort of electronic speedo. I am wondering if I can put in a 123 speedo into the cluster and simply hook up my cable from the tranny to the speedo?

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[SIGPIC] Diesel loving autocrossing grandpa Architect. 08 Dodge 3/4 ton with Cummins & six speed; I have had about 35 benzes. I have a 39 Studebaker Coupe Express pickup in which I have had installed a 617 turbo and a five speed manual.[SIGPIC]

..I also have a 427 Cobra replica with an aluminum chassis.