First gen cummins No spedeometer or wait to start light
 

recently pulled my automatic out of my 91 dodge cummins and sawped it to a standard but b4 i didt i had no over dirve on the automatic and no spedometer or wait to start light. the over drive doesnt matter now obviously but i still have no spedometer or wait to start light
any suggestions

the sensor in the rear diff needs to be cleaned or replaced

which sensor

Theirs a wait to start light?

are you the one who bought my auto tranny from me last night? glad to see you joined us.

as for a rear axle sensor, the only sensor in the back i believe is for the rear antilock brakes, which would have nothing to do with your speedometer or wait to start light. if you get me a wiring diagram i can help you out. or maybe i have one i i will look tonight

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if you were referring to the vss sensor being the axle it shouldnt be there. i dont know if thats what you were talking about but the vss is in the transfer case on a 4wd and the transmission on a 2wd