yes, brown to sender terminal - I don't think the sender originally had an actual ground wire, but adding one from a sender mount screw to the cab wall or floor makes having a good ground a sure thing instead of counting on the tank and straps
"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
