Mine must of been bent from a previous owner as well, because mine reads 3/4 full when filled. I completely forgot vfaq, and went through it. I still need to know if the N/A gallant has the same fuel sending unit? I wouldn't be surprised if the pumps were different though.
thats how it was when i bought the car. i think the guy had an aftermarket pump in there and removed it before i bought the car. he probably bent the arm when putting it back in the tank. there is a cover in the trunk on the drivers side. two phillips head screws take them out, remove the plate, disconect the harness, push the gromet and harness threw the shield, remove the shield, then there are 8 8mm nuts that have to be removed, if they look rusty PB blast them wait 20 minutes then remove them, pull the pump out, take the arm push the arm all the way up to where it would be a full tank, grab the floater and bend the arm till the floater sits level with the piece that the arm is pivoting on. i hope this helps you a bit.