In the shop manual, the wire diagram for a 54 3100, 3792 and 3942, one of the wires going to the stop/tail light, the left and right front park lights is NAT which I take it to be NATURAL. But what color is that? There is already white and tan. Can/Will someone give me some idea, please? Thanks in advance for any replies.
Stewart
Stewart2 1955.1 3100 Both Owner and P/U have lots of miles, lots of history and need LOTS of TLC Jack of several trades and experiences; Master of none
Not sure exactly why you are asking, to replicate or follow the wire or curious. The general answer I can give is:
The old cloth covered wire, Natural color is a light tan, not Tan. The tail light wire you mentioned is Natural with a White tracer. The tracer is a woven-in, or otherwise colored, line or hounds tooth that looks spiralled. Tracers are now used when you run out of solid colors. The old wire was given a "varnish" type coating and, after time, Natural can be dark yellow, orange or brown appearing. If Chevy changed to non-cloth covered in your era, it should follow the same visual color. If it is non cloth, Naturalwould fade differently than mentioned. In the modern PVC or cross linked insulated wiring harnesses available with new fuse panels that I have used, the Natural color is NOT supplied. The standardized GM colors are used. These colors sometimes do not match the older wiring diagrams, That's why you buy a good kit with GM colors and is also stamped as to function.. Then, when trouble shooting, you refer to their diagram/colors or just read the circuit/function stamped on the wire. In our old trucks, unless the wire is in a wire loom, wires are easy to follow or buzz out.
Cloth covered wire harnesses, with proper vintage colors, (including Natural) are available from vintage harness makers....at enormous prices.
Right is right, even if everyone is against it, and wrong is wrong, even if everyone is for it. - William Penn
The 1954 truck wiring harness was plastic/vinyl sleeved/coated (cloth covered/sheathed wires ended in 1952 trucks, I think).
Two wiring diagrams are attached below. low-res and hi-res
I think you will see that the front parking lamp wire in the main harness is purple. The parts of the harness that splits off to the front lamps/lights and goes to front-lamp junction "strips" on each inner fender contains the purple leads. The color or the parking lamp lead from that junction strip to the lamp is "natural" - a light tan, as I recall.
