I bought some new repop tailights (Thailand) for my 1977 pickup but the wiring harness plug (rectangle 5 conductor) is different than the OEM version (square/rectangular - 4 conductor plus a separate wire with spade plug for the tail light). Has anyone made this conversion and can tell me what wires go where?
Your factory harness will have a total of 5 wires going to the rear tail lights. Your harness should have the same color code as my 1978/79. My harness color code: Grn- parking Grn/yel- R turn Grn/blk- L turn Red/purple- backup Grn/wht- brake Hope this helps.