I didn’t notice in search that anyone here has posted anything about these for w/t grill trucks so I thought I’d offer my 2 cents (learning the hard way) for how to install these (pics below and next reply).
I will add links at the bottom for all the things I ordered.
After deliberating a while over LEDs and Trucklite headlights I decided I wanted to stay with the classic look and DOT legal while upgrading the light output over the crappy sealed beams. These looked updated yet kept the truck looking clean IMO.
They come with a hardened borosilicate glass lens and a cast aluminum back. So the quality is impressive out of the box. They are touted as “plug and play” but they are far from it (at least for GMT400’s). With a little handy work though, it’s not that bad to install them.
The headlight adjustment buckets will not accept the large weather seal on the back of the housing without modification. The hole is way too small.
To remove the buckets, unscew the adjustment bolts. There’s one one the side and another on top of each. As you undo these the tension on the spring on the lower part of the bucket will release which makes them easier to unhook.
I took an angle grinder with a cut off wheel to enlarge the center of the headlight buckets. You might think tin snips would be worth a try but I even tried bull snips to no avail.
Side note- the adjustment bolt retainers (white plastic) will likely need to be replaced because they will be old, brittle and won’t hold again with reassembly. I found this out too late and had to order them on amazon (10 for $13) after I broke two of them. Those are pictured as well.
I filed down the rough edges on the new holes I made and used etching primer followed by tractor paint to keep the rust away. If yours are as rusty as mine were to begin with, then some rust reformer before this step works well.
Reinstall the buckets. Now you can mount the new housings. On the battery side I found it easier to install the bulb first since there’s less room to get your hand in behind the headlight once it’s bolted up. I had to cut part of the center hole on the weather cap to allow the pigtail to attach. Yours might fit. Modify to fit your application just don’t go overboard. It still needs to work to keep moisture out.
Now here comes the bad news.
Even with the standard 55/60 low/hi beam H4 bulbs, the stock lighting harness isn’t enough. I even have the big 6 done already with 0/1 ga!
Man was I confused (followed by pissed) when I went to fire these bad boys up and only 1 side lit. I wiggled the pigtail to get the other side on but then high beams wouldn’t work.
So save yourself that trouble and downtime (especially if it’s your daily) and order a H4 upgraded harness. Got mine from Classic Industries for $35 shipped.
Still waiting on that harness so I’ll update once that’s in. Should be simple to install. It has the relays you need to draw current directly from the battery.
Hope this is helpful to someone
The housings $65 for the pair:
https://www.vxwholesale.com/hi-lo-sealed-beam-replacement-light-vision-x-vx-57-4004023/
The super white H4 bulbs $30 for the pair (brighter than silverstar):
https://www.vxwholesale.com/55-60-w...-superwhite-bulb-set-vision-x-vx-dh4-4001602/
The relay H4 harness $25:
https://www.classicindustries.com/product/1995/chevrolet/all-models/parts/mx01132.html
The adjuster bolts:
https://www.amazon.com/dp/B0040CYVHW?ref=yo_pop_ma_swf
I will add links at the bottom for all the things I ordered.
After deliberating a while over LEDs and Trucklite headlights I decided I wanted to stay with the classic look and DOT legal while upgrading the light output over the crappy sealed beams. These looked updated yet kept the truck looking clean IMO.
They come with a hardened borosilicate glass lens and a cast aluminum back. So the quality is impressive out of the box. They are touted as “plug and play” but they are far from it (at least for GMT400’s). With a little handy work though, it’s not that bad to install them.
The headlight adjustment buckets will not accept the large weather seal on the back of the housing without modification. The hole is way too small.
To remove the buckets, unscew the adjustment bolts. There’s one one the side and another on top of each. As you undo these the tension on the spring on the lower part of the bucket will release which makes them easier to unhook.
I took an angle grinder with a cut off wheel to enlarge the center of the headlight buckets. You might think tin snips would be worth a try but I even tried bull snips to no avail.
Side note- the adjustment bolt retainers (white plastic) will likely need to be replaced because they will be old, brittle and won’t hold again with reassembly. I found this out too late and had to order them on amazon (10 for $13) after I broke two of them. Those are pictured as well.
I filed down the rough edges on the new holes I made and used etching primer followed by tractor paint to keep the rust away. If yours are as rusty as mine were to begin with, then some rust reformer before this step works well.
Reinstall the buckets. Now you can mount the new housings. On the battery side I found it easier to install the bulb first since there’s less room to get your hand in behind the headlight once it’s bolted up. I had to cut part of the center hole on the weather cap to allow the pigtail to attach. Yours might fit. Modify to fit your application just don’t go overboard. It still needs to work to keep moisture out.
Now here comes the bad news.
Even with the standard 55/60 low/hi beam H4 bulbs, the stock lighting harness isn’t enough. I even have the big 6 done already with 0/1 ga!
Man was I confused (followed by pissed) when I went to fire these bad boys up and only 1 side lit. I wiggled the pigtail to get the other side on but then high beams wouldn’t work.
So save yourself that trouble and downtime (especially if it’s your daily) and order a H4 upgraded harness. Got mine from Classic Industries for $35 shipped.
Still waiting on that harness so I’ll update once that’s in. Should be simple to install. It has the relays you need to draw current directly from the battery.
Hope this is helpful to someone
The housings $65 for the pair:
https://www.vxwholesale.com/hi-lo-sealed-beam-replacement-light-vision-x-vx-57-4004023/
The super white H4 bulbs $30 for the pair (brighter than silverstar):
https://www.vxwholesale.com/55-60-w...-superwhite-bulb-set-vision-x-vx-dh4-4001602/
The relay H4 harness $25:
https://www.classicindustries.com/product/1995/chevrolet/all-models/parts/mx01132.html
The adjuster bolts:
https://www.amazon.com/dp/B0040CYVHW?ref=yo_pop_ma_swf
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