I switched to halogen sealed beams many years ago, but I run my lights all the time I’m driving and they burn out very quickly. So I went back to standard sealed beams on the low beam bulbs, and left the halogen bulbs on the high beams. I also installed a relay system which makes everything much brighter, and will be necessary if you want more powerful headlights. Here’s a thread showing how I did mine:
http://67-72chevytrucks.com/vboard/showthread.php?t=387693&highlight=headlight+relay

And post number 3 on this thread shows the installation of projection headlights:
http://67-72chevytrucks.com/vboard/showthread.php?t=373928&highlight=halogen+headlight

And post #11 on this thread shows the installation of HID lights:
http://67-72chevytrucks.com/vboard/showthread.php?t=368149

And here’s another thread on relays and Hella E Code lamps:
http://67-72chevytrucks.com/vboard/showthread.php?t=397695&highlight=halogen+headlight


1960 GMC 1/2-Ton Pickup Truck
In the Gallery
Updates in the DITY Gallery
Now cruising in the Passing Lane