aurora fluctuating gas gauge

my 98 aurora's gas gauge has went crazy, filled up sunday and i think from reading other peoples post that i over filled it. if i have to replace the sending unit can i pull it from the trunk?

Second question. my passenger rear window will roll down but not up, any thoughts. i have two auroras and i switched motor and switches out with no different results. :banghead:

not sure bout gas guage. might be sending unit. ya never top off tank. or could try resetting. disconnect battery for a min. then reconnect. on windows- could be safety switch on rear doors. or could be broken wires on driver side in boot between door. i had 3 broken wires. easiest to take door panel off, remove tape. then gettly pull rubber boot through door to see wires. sux, tho worth saving a grip of money. check well, some wires look ok, tho still can be broken or bout to break. then cut, fix using butt connectors.

The sending unit went on my 2001 at about 45000 miles. They had to drop the gas tank to get at it. Im not sure about a '98.