crickkid

Thank you guys for all of the info. I will check and see if maybe my car already has the 12-6 volt reducer on the guage. That might be the reason that it reads full most of the time. Also the sending unit that is in there now has two terminals and 49 plymouth should only be a one terminal unit. I now know what to look for. The posts on figuring voltage and amps are confusing to me on first read, but after some studying will be able to figure it out. Thanks again, Bill

I just purchased a 49 plymouth and the sending unit does not work, after looking things over I found that someone had put in some aftermarket oddball unit that won't register correctly or at all. It reads full most of the time and will come off a little when it gets near empty. I have purchased an original style unit and was wondering if it will work since my car has been converted to 12 volts. I don't know how they did the conversion, but just know that it is 12 volt starting and lights...

hey guys, just joined the forum and am finding lots of fun info. I have recently purchased a 49 special deluxe 4 door sedan in longmont, co. and drove it home to northeast nebraska. I need to put in a new fuel sending unit and since it has been converted to 12 volt was wondering if that will affect the sending unit at all?