Some good points Sno Man.
More than likely, aiming is not correct on most trucks, and a slight
adjustment might be in order. Of course, one doesn't want lights that
are too high in aim, and may blind oncoming drivers, orbe a nuisance to
drivers who are in front of you on the road.
I did mine by "eye" with the proper tools on a dark deserted country
road. I tweaked a little at a time, and tested. It was a somewhat
lenghty process, and using some sensible experience adjusted them that
they are the way they should be, without being a safety hazard to other
drivers on the road.
I also noted that many vehicles today seem to have the left beam pointed
so far to the right, to be of no benefit when driving. Have others ever
noticed this?
One should note that some aftermarket Lamps are actually no higher in
wattage than the stock lamps. One my '97 Tahoe, the stock lamps were
55/85 watts if I remember correctly.
I upgraded to PIAA Lamps from Performance Parts, and these suckers were
quite costly, about $130 for the two pairs of Lamps. Were they worth it?
In a word, yes they were.
Again, if I remember correctly, the upgraded PIAA Lamps were 85/110
watts, and no, I have never had a problem with melting, or discoloring
Lenses on my Truck, they still look like brand spankin new in fact. The
Lamps have been in my Truck for a good 7-1/2 years. I am the original
owner of the truck.
As another has recommended, I had also upgraded at that time with the
painless wiring Hi-4 Kit from Performance Parts, and this was a very
worthy, and beneficial upgrade on the really dark roads. Mark
>> Stay informed about: Upgrading headlight bulbs/01 GMC Sierra 1500 
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