i got 98 12v cummins and when i turn the headlights on the brights indicator is half lit then when i hit the brights its fully lit buuuuut without the brights on the drivers light is brighter than the passenger then the lights switch when i turn the brights on the passenger is now brighter than the drivers, des anyone know why this is happening do i just need to buy new bulbs? or is it a wiring issue?

 

switch the bulbs, if it does the same thing, wiring, if it changes sides bulbs.

 

its verry common on the second gens for the headlight switch to fail and even sometimes catch fire, Id start with the switch. when the switch starts to go the most common problem is no headlights unless you hold the high beams on

 

I vote for headlight switch. Make sure you get the harness also. And don't get the autozone crappers

 

Most often my car's headlights become too dim. This I find when I drive it on highway. Is anybody could be able to help me?

 

I HAVE PUT THE WRONG BULBS IN BEFORE AND HAD THIS PROBLEM