What tools are needed for fuel filter replacement on a 1998 Chevy blazer?

I had to replace the fuel pump twice. First time the vehicle wouldn't start. Worked like a charm after the replacement, until the fuel gauge sensor failed. Second pump I have put in worked fine until the vehicle started stalling randomly. Kicking the gas tank to start it helped for a while. Checked the ground connection for the pump and it was rusty. Sanded it down with some sand paper, 50000 miles later still working fine.