headlight upgrade

jeffw · Post by **jeffw** » January 31, 2009, 12:27 pm

65f100_Thug wrote:

Thats what i did, and it took longer to get the old headlights out than it did to install the whole thing ....and LET THERE BE LIGHT......A WHOLE NEW WORLD EMERGED.. Im not real fond of some lmc products but this upgrade gets 5 stars...no doubt.

alright I must have done somthin wrong!!! I bought new halogen headlights, and the passenger side light is dim!!! with the kit it says to hook to original harness, now I unpluged the driver side harness to the headlight and used the passender side, it says on the harness to use the original harness and has a plug in for the old headlight harness where you just plug in to the new harness,, are you still there?? in other words just unplug the headlight and plug the headlight harness into the new system,,
somehow the passengerside is not gettin the same boost as the driver

Post by **Greg D** » January 31, 2009, 12:57 pm

There is a ground wire to the core support or grill area on both sides, one for each headlight. If one side isn't hooked up that side will be dim (please don't ask how I know this).

DCarr · Post by **DCarr** » January 31, 2009, 4:19 pm

Probly the same reason I know , Greg.

crewzinforabrewzin · Post by **crewzinforabrewzin** » February 1, 2009, 3:07 am

i got hella h4's in my truck. the first time i hooked them up i just put them in without relays. i had one side that was real brite and one real dimm. 2 miles down the road first time trying them out they cooked my headlite switch and before i knew what was goin on my headlites went out, it was picth dark out and a windey highway. scared the poo outa me. after a couple miniutes they cooled down came back on. next day i got relays and some heavier wire redid all my wiring. i never thought headlites would ever really get me excited, been over a year now and i'm still pretty pumped about them. drove forever with my highs on nobody ever flashed me and i could never see. the first week i had the some one flashed there brites on me, so being the gentleman i am i shot them rite back with my highs. they stoped and pulled over. it made my day. my bulbs are the brighter offroad ones that arent soposed to be on the highway. but i have only had 2 cars flash me with my lowbeams on, i just make sure i dimm them a bit sooner then usual

blackagatha · Post by **blackagatha** » February 2, 2009, 1:35 am

whoever it was that said just cleaning the terminals on your stock harness made it acceptable..... You dont know the definition of that phrase!!!!

no matter WHAT you do to the 30 feet of 16 ga wire that feeds the headlights.... It will not be very good. especially if you put on the big bad lights like the HELLAS.

I put 12 ga hots straight from the alternator, to the relays then to the lights, and 10 ga grounds (I sitll intend to hook them up so the lows stay on when the hi's come on). I took apart some OEM style light pigtails and stuffed the fatty wires in. that was kinda hard, but worked out.

Just unplugged the original harness, used a spare connector, and now all the crappy original wiring does is click the relay.

The relays and fuses are a wee bit of an eyesore if it were a real clean truck, but could probably tuck it away real nice somewhere.

probably did cost more than the LMC swap, but I'm sure I got fatter wires, and less chinese bologna.

If you dont update the grounds, you're wasting your time.

jeffw · Post by **jeffw** » February 2, 2009, 9:15 pm

well got the headlights shining bright!! turns out it was a ground wire, workin very well now