anything inside that needs a ground can/will be connected to the dash or firewall, the ground on the inner fender should be out to the the headlights, maybe you can't get the headlights to work cuz there's no ground to the bulbs? .... don't know what switch you have [maybe incorrect?], but the TF switch instruction is date 1954, might help? the dash lights connect toward the front of the switch to get power from the rotary resistor, and the headlight terminal should be labeled "H"

Bill


Moved over to the Passing Lane

"When we tug a single thing in nature, we find it attached to the rest of the world" ~ John Muir
"When we tug a single thing on an old truck, we find it falls off" ~ me
Some TF series details & TF heater pics