after reading the above i have the same eerie feeling that i have had before. when i got my truck it was already 12 volt. no sign of reducers any where, also has a factory radio that works off of 12 volts. could my 54-3100 been 12volts from the factory? i just put a new tank in with a 0-30 ohm sender. how will i know what mine is? i hate to think i have to take the bed off again and throw away a new sender to get a 0-90. help RON
