Here are illustrations of 1953 truck wiring diagrams:
PDF document jpg image I have never seem a 1953 Shop Manual - the illustrations above are from the CSN (Chevrolet Service News - compliments of Keith Hardy)
I do not know if those are the
factory schematic that Bill refers to.
The FAM illustration is for a 1954/55 truck gauge. The 47-53 gauge is different, but the orientation of the leads/poles might be the same.
I do not know how you would know if the left and right attachment points in the CSN illustration are from the front of the gauge or from the rear of the gauge?
