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Trying to figure out why my 85 F250s speedo and odo don't work. It was switched to carb and there's wires everywhere. Should I be looking at the trans or the rear for a speed sensor? I wanna replace that first to see f it solves the problem.
Its easy as heck if you just need to replace the speedo gear, one bolt and a retainer clip. If the gear in the transfer case is worn you will need to disassemble it to replace it.
BTW check your cable as well, I've one kink up inside the rubbery housing which made my speedo jump around.