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I will be making my own wiring harness when I get my car back from the paint shop so I thought I would scour the old drawings and create a new one based on it, but in a clearer format as well as a 3D image that you can pan/spin/zoom using Adobe Acrobat software. I have incorporated some revisions based on my car such as turn signals and a later model voltage regulator but I thought others may enjoy the drawing and 3D model too.
BTW, the drawing is done on a B size sheet, (11x17") so either pick that size to print, or if you have a standard letter size printer use the 'poster' option and set it for 2 pages. Makes it larger and easier to read.

Attach file:

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120C Wiring-drawing.PDF Size: 290.05 KB; Hits: 143
120C Wiring-3D.PDF Size: 4,223.52 KB; Hits: 119

Very Nice! Am presuming the turn signal switch is an aftermarket addition?? If so any additional details that are available such as a brand & model would surely help anyone else who might not have the same switch or might be looking for something similar that would work. If yours is obsolete now info still might help in comparing with what is currently available.

Good point. The data sheet notes the Turn Signal switch as U-13340-TS. Just bought it this summer and I have seen it in numerous older cars as an aftermarket accessory. It is also a standard hook-up so that the signals and brake lights work independent of each other like a modern car.

Not seeing anything on the 3D version. 2D sure looks good though. Well done.

Not all PDF viewers can handle 3D documents. Adobe Reader can but the reader in iOS and others cannot. I run Linux so can’t view them easily on my PC either without a 3rd party application.