I have a 98 Z71 with around 112,000 miles. the fuel pump is starting to whine a bit. could it be going out? I guess its about time for it to with the miles i got on it. are these easy to replace yourself?

I just had to do mine on my 98. We pulled the bed off so we didnt have to drop a full tank of gas. Its easy to do if u got 3 other guys helpin lift the bed. so you know, direct from GM the pump is 600+. i got a bosch for 280 from auto zone.

thanks