Headlight relays..

[mrein3]

Originally Posted by oldblue1968chevy

Soo...now what? What guage wires will I need? Ive got some 12 or 14 red colored wire, any other things?

Going to solder/heat shrink every connection possible, should I pick up some convulated tubing? Or anything special? Or some black X guage wire?

Thansk!!

Originally Posted by 71gmcburb

will these work on a GMC or would I need a higher amp relay? and any diff on the diagram

You want new 10 or 12 gauge wire from the battery through the fuses to "30" on each relay. I'd use 10 or 12 gauge black for "85" to ground. Use the existing truck wires to switch the relay. Looking at the diagram that would be "Stock High Beam Wire" and "Stock Low Beam Wire". You can get these wires from either side of the headlights. Just mark them with tape "high" and "low" to make life easier when you are wiring stuff up. The stock wire can be used without cutting it by removing the Packard type 56 connector (little brass colored insert) out of the plastic stock headlight connector.

The diagram works for both Chevy and GMC. On a Chevy just "snip" the green wire to the yellow high beam circles. On a GMC snip the green wire to the blue low beam circles.