The single best headlight upgrade is a headlight relay wiring harness, such as this one from LMC Truck Parts
http://www.lmctruck.com/icatalog/cc/full.aspx?Page=70.
It will increase the voltage to the bulb for brighter lights, and greatly reduce the load on the old, weak and inadequate wiring. This should be done first before any other upgrade, CUCV's are notorious for fried wiring and melted fuse blocks due to the poor headlight wiring.
See the CUCV Headlight Circuit Sticky
http://www.steelsoldiers.com/showthread.php?87544-CUCV-Headlight-Circuit
I've done the Sylvania Silver Stars on three vehicles, two with original wiring, and one with the headlight relay modification.
While it is a huge upgrade over OEM headlights, lamp life leaves something to be desired, especially with the relay modification. I am sure better options are available.
The following web site gives some info on Sylvania's automotive lighting
http://www.sylvania.com/en-us/products/automotive/Pages/default.aspx#
I am personally looking at the following headlights,
http://www.rallylights.com/detail.aspx?ID=744 , with the 75/70 Osram Hyper Bulbs.
99% of my night time driving is done on gravel and dirt roads with, at best, occasional oncoming traffic.
We live in a rural area, and the local law enforcement doesn't know or care about DOT approved lighting, as long as it appears reasonable.
Does anybody have experience with these lamps or bulbs?
Poor lighting is one of my pet peeves, whether in the house, office, shop, or on the road!