I gave up on modifying the instruments I have and bought a new speedometer. I will have to have an aluminum panel made but it all will fit inside my stock dash trim panel. I'll have a 3 3/8" mechanical speedo with trip meter, water temp, oil pressure, fuel, and ammeter gauges. All with traditional black faces and white numbers and chrome or stainless bezels.

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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.