speedometer revolutions per mile?

[k204dr]

anyone know what the speedometer revolutions per mile would be on a 87 chevy truck speedometer? can't find it stamped on it anywhere. trying to verify I have the correct speedo gear setup in it. don't seem to have mile markers anywhere close either.

 

[Russell]

A properly calibrated speedometer cable output should be putting out 1000 rotations per mile

 

[k204dr]

Thanks. thats what i was looking for.

 

[Blue85]

And it's same for cars, trucks, Ford, Chevy, etc.