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Old 01-20-2026, 09:50 AM   #5
blkcorvair
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Join Date: May 2011
Location: Long Island NY
Posts: 835
Re: T3 Headlight Mod for H4 Bulbs

afterletting them set for an hour or two I installed the completed bulbs back into the truck. The rubber boot around the back of the bulb is a tight fit into the hole in the factory bucket but with a little dilectic grease it slides into place nicely. The factory headlight retainer rings are a tight fit around the new metal H4 housing. I had to file the edge of the metal H4 housing on the one side that I spread open a bit to make the trim ring fit, so keep that in mind and dont spread that open any more that you need too fitthe glass. Once I get a chance I will take it outside in the dark and to check the beam pattern and adjust.

With the H4 Housing one could install Higher watt Output bulbs, led options and such. Personally I just wanted to keep the OEM look and be able to replace the bulbs themselves rather than order $170 headlights everytime they fail. I like the Original Yellowed Dim look that it has.
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Last edited by blkcorvair; 01-20-2026 at 01:14 PM.
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