Originally Posted by GMJager
if the taillights have two wire, the bulbs are mostly likely two-filament.
One wire is for the brake light, and one wire is for the turn signal (....)
not correct - the 2 wires are tail and brake, the brake light also functions as turn indicator and it's the brighter one

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