converting to H4 headlights..question

[bigarmzz]

i'm in the process of converting my headlights to the H4's...(well the stock 4 headlight front end that is),

the problem i'm having is..all the H4's bulb's are 3 prong, and my factory harness plugs are only 2 prong

any idea's on how to get this to work? i called ipcw, and they told me that they thought all stock headlights were 3 prong plugs, so that dont help at all, and they told me to just call my local parts store, they should have an adapter...which i did,...they told me they never heard of such a thing..now i'm scratching my head

i know there's "bound" to be someone or several on here that have done this already, i searched but didnt find what i was really needing

thanks guys

[lvschevytrucks]

the harness I sent you has nothing but 3 prongs? that doesnt sound right I just when out and looked at the core support that the harness came off and the top lights have 3 prong and the bottom has 2 prong

[bigarmzz]

Originally Posted by lvschevytrucks

the harness I sent you has nothing but 3 prongs? that doesnt sound right I just when out and looked at the core support that the harness came off and the top lights have 3 prong and the bottom has 2 prong

no man, its not nothing to do with your harness.....not at all

the problem i have is, the H4's are all 3 prongs, and the stock bottom lights are only 2 prongs....now i have (4) total H4 bulbs, of which, the top two plug right in, no sweat, but the (2) bottom ones wont plug into the 2 prong wiring harness

make sense?

[dammitmitchell]

do you have a link or resource for where and why you decided to do this?
some pictures and reasoning miiiiight get me to convert over to the dark side.. =-)
plus it just seems cool..

so why are you doing it?

[bigarmzz]

Originally Posted by dammitmitchell

do you have a link or resource for where and why you decided to do this?
some pictures and reasoning miiiiight get me to convert over to the dark side.. =-)
plus it just seems cool..

so why are you doing it?

long story short, i'm changing my suburban front end, back to the stock silverado (4) headlight front end, so i can put on a phantom grille i got (always wanted one of these)

..so next, i wanted to put in the H4 headlights, b/c i didnt want to remove the whole grille if i ever needed to change a blown light, make sense?

i'm using these headlights
http://www.stylintrucks.com/parts.as...tfamilyid=3143

with these H4 bulbs (although they actually look different than the picture)
http://www.stylintrucks.com/parts.as...tfamilyid=5591

[tgh117]

The H4's i got from LMC truck came wiht adapters that only had the two prongs to plug into the factory harness. I believe they can be ordered seperately from LMC truck as well, but I dont have the catalog on me.

[bigarmzz]

Originally Posted by tgh117

The H4's i got from LMC truck came wiht adapters that only had the two prongs to plug into the factory harness. I believe they can be ordered seperately from LMC truck as well, but I dont have the catalog on me.

does the back of your bulbs that LMC sent you look like the back of these? b/c i looked in my LMC book, and the wiring harness adapter they send you, doesnt look like it would plug into my bulbs...??

these are the H4's that stylin trucks.com sent me..the lamps are "ipcw" brand and the bulbs are "plasmaglow" brand

a pics worth a thousand words so, here's my set up, the "prong pic" is what all (4) bulbs looks like, (3) prongs on all of them

[bigarmzz]

the bulbs i have appear to be the "halogen blue coated headlight bulbs", seen on the bottom left, above the "xenon's"
http://www.lmctruck.com/icatalog/cc/full.aspx?Page=71

[Igotachevyor2]

my h4/h1 conversion that was on the 86 K5 uses h1 for the lower lights/high beams they are 2 prong. can you put the h1 bulbs in the housings?

[fixit-p]

You have 4 top lights and 0 bottom lights. Typically the top lights are a dual fillament bulb (high and low beam) whereas the bottoms are high beam only thus only two prongs.

[dammitmitchell]

oh!
i had assumed you purchased hummer h4 headlights (i dotn pay attentionso i am not sure if H4 is a hummer modl yet, but it was early and made sense in my mind)
thanks!

[N2TRUX]

Originally Posted by fixit-p

You have 4 top lights and 0 bottom lights. Typically the top lights are a dual fillament bulb (high and low beam) whereas the bottoms are high beam only thus only two prongs.

Ding, ding, ding! Folks, we have a winner! The three prong bulbs are dual element, two prong are single element.

[bigarmzz]

.....so...here's what i'm thinking...i know this may be a dumb question, but....

what if, i bent down the extra third prong on the bulb, and just plugged it into my (2-prong) harness? wouldnt that work?

i went to auto zone and looked at the stock bulb replacements, and i couldnt find any halogen bulbs that had 2-prongs

[bigarmzz]

Originally Posted by Igotachevyor2

my h4/h1 conversion that was on the 86 K5 uses h1 for the lower lights/high beams they are 2 prong. can you put the h1 bulbs in the housings?

ya got a part number for your H1's???? i went to the parts store and looked and couldnt find any halogens that had 2 prongs

this crap has really turned into a hassle

[Igotachevyor2]

autozone h1

autozone h4

autozone h7


you may look at these. i had h1 high beams and they are 1 wire if my memory is right the bulb housing had a spade to ground it to. the h7 bulb has 2 prongs but i dont know if it will fit your housing. the h1 bulbs also can be bought with a one wire pigtail like for a large flash light. they work to and can be bought ove 130 watt. i had 60 watt h4s and 100 watt h1s. the person who put these in did not cut the harnes just made small pig tails to connect them.

[Igotachevyor2]

another link for install on a toyota it has napa part numbers

[staggerd86c-10]

just wire them up so that all four lights are always on i think that would look pretty cool.

[72 CustomCamper]

One website I just looked at said you need to use H7 bulbs for the high beams...


Chuck

[3r!c84]

Originally Posted by dammitmitchell

oh!
i had assumed you purchased hummer h4 headlights (i dotn pay attentionso i am not sure if H4 is a hummer modl yet, but it was early and made sense in my mind)
thanks!

ahaha h4 hummer lol no such thing lol they only got h2,h2t,h3,h3t

spend a day at your g-mas job and you will now ever car gm is selling right now.oh she is a title clerk.

[Igotachevyor2]

can you just wire the high beam from the h4 to your 2 prong harness?

[andrewmp6]

Make sure you use a headlight relay kit with the lights it helps take a load off and your lights work better.

[texasfunk]

Originally Posted by Igotachevyor2

can you just wire the high beam from the h4 to your 2 prong harness?

i was also thinking the same thing, or running it with all four,when i had my phantom i used all four lights and it looked really cool i thought,

also would have been cool to use the phantom on the burban front, why didnt you go that route? that could have been kind cool as well.




hope you figure it out, love your truck btw! once i saw a pic of it def made up my mind abt the burban clip!

[bigarmzz]

i'd looooove to keep the burb front end, but i cant find a phantom grille for the 89-91 front end any freakin where

Originally Posted by texasfunk

i was also thinking the same thing, or running it with all four,when i had my phantom i used all four lights and it looked really cool i thought,

also would have been cool to use the phantom on the burban front, why didnt you go that route? that could have been kind cool as well.




hope you figure it out, love your truck btw! once i saw a pic of it def made up my mind abt the burban clip!

[texasfunk]

they dont make them, if u pay ttention in the pics, and ith wht i realized, just remove the burban grille and headlight buckets, put ur chrome molding from the old grills around, and the phantom should bolt in, srry if i confused u any lol, explained best i can

[bigarmzz]

Originally Posted by texasfunk

they dont make them, if u pay ttention in the pics, and ith wht i realized, just remove the burban grille and headlight buckets, put ur chrome molding from the old grills around, and the phantom should bolt in, srry if i confused u any lol, explained best i can

have "you" done this before? i was curious b/c the last pic of the red truck with the cowl hood doesnt look like he has the bottom park light in there....just a quick look at mine this morning, makes me wander if the park lights might not stick out too much for the phantom to fit....guess i'll have to just get in there and give it a shot and find out

that pic of the tan/red truck looks darnnnnn gooooood