65 dart Fuel gage

I bet it is, if you google it( I can't remember what the heck it's called). My 64 doesn't have one that can just come out the back like that. There are articles about going to radio shack and building a newer set up for the 64's. I'm not sure when the went to the newer style that plug in the back of the cluster. It's about a 1 1/2 long and a 1/2 in wide.