The gasket where the pump mounts to the top of the tank has a tendency to get a little chewed up, and the filter screen that attaches to the bottom of the pump and the sending unit gets dirty once in a while. I'm not 100% sure of the exact part names, but I'm sure your local Advanced, AutoZone, Napa, etc. would be able to help you out...
I got a Jeep, it's lifted and it's got crap bolted to it.
Color by Rattle-Can.
LO Jeep Club #111 [and not proud of it]
Red Jeep Club #MC399