Head Lights Turn off after 10min

CUUDAK said
Headlight switch in the dash and/or Dimmer switch on the floor

Replace both, they are cheap!

1968FormulaS340 said
Im definitely not a wiring expert but I would start with cleaning all the grounds and connections in the system.

It may or may not fix the problem but it's free and never a bad idea on a 40 year old car.

what they said... really check the plug on the headlight switch too. those suckers can melt pretty bad if the switch crapped out.