Have a 68 that’s been sitting in a garage since 89. Got it running and starting to fix small things. Last night I change 2 tail light bulbs, one on each side. Everything worked fine, running and break lights. Decided to change the other 4 and now none work. Only light on the back that works is the passenger side license plate (driver side is rusted due to a hole in the red plastic). Any tips or ideas on what the issue might be? Thank you.
Check for a black ground wire comming out of that harness near the gasoline filler neck. It may have broke loose during the bulb replacement.