Quote:
Originally Posted by mrein3
Near the battery I marked one relay high and one low. Connect the highbeam headlight wire you removed from the headlight near the battery to the high relay connector 86. Low from factory to lowbeam relay connector 86. These wires are the wires from the switch in the cab that will switch the relay on. Now all you have to do is hook a ground wire to 85. You also need to get a 10 or 12 gauge FUSED wire from the battey to connector 30 on the relays. DON'T FORGET TO PUT A FUSE IN-LINE ON THIS WIRE.
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Can I quote myself? Well I am.
As long as this thread came back from the dead let me relay a story of what happed to me this past week.
I was bolting the right inner fender to the right fender. The bolts weren't lining up but on a 35 year old truck this isn't too out of the ordinary. All of a sudden my headlights went on. Hmmmm. I jiggled the wires around my relay upgrade and they went out. I checked with the headlight switch and they appeared to be working. Both high and low beams.
I never did get the bolts in and it was time for bed so I left it for the next day.
The following day I noticed the 10 or 12 gauge wires I used in the upgrade from the relay to the headlights were pinched between the battery tray and the inner fender. I got them out and tried the lights. You should have heard the self resetting circuit breaker!
To make a VERY long story short; MAKE SURE YOU USE A FUSE OR CIRCUIT BREAKER WITH SOMETHING LIKE THIS! I can't imagine what I would have done to my truck if I had nothing between the battery and the relay when I shorted that large wire.