I fixed it by NOT drilling holes in my friking head lights for the water to leak out!

So a couple of months ago after looking at a tech thread about removing water from head lights I got to thinking, surely all of these ford ranger head lights are not BREAKING or CRACKING on the lens, so I removed both of my headlights from the back of the plastic housing and popped out the the whole housing unit and after simply dumping the water out I examined it with a fine tooth comb ESPECIALLY the lens and could find NO cracks or any other possible way water would be getting in my head lights,so the LOGICAL assumption was the (SEAM) the area where the clear plastic lens is attached to the rest of the plastic housing, although I could not see any OBVIOUS areas of water entry I decided to run a small bead of CLEAR silicone around the entire ( SEAM ) after letting it sit for 2 hours I popped back in the housing unit and then plugged in the head light.

I went to the car wash the next day and when I was done I examined both lights and they were ( and still today many car wash / rain storms later ) still BONE DRY!!

I would recommend to anybody that DRILLED HOLES in your head lights to put a drop of silicone in those holes then do as I did with the (SEAM)" assuming you don't have an obvious cracked lens"

ON a side note , the reason I choose to not drill holes was because I drive on a very dusty gravel road a lot and I did not want the inside of my head light to start to get dirty/dusty from these holes.

I don't believe my experience was a UNIQUE one I believe I found the problem and fixed it and I think you will find that a bead of silicone will also fix yours and BTW you can't see the area where the bead is because it sits back a ways once put back in the truck so APPEARANCE is not an issue, it is well hidden!