I am confused about replacing my fuel pump.

the smaller ones that you see,are the pumps only,or the pump kits.the large unit you see is the fuel pump module assembly.if your gas gauge is working ok,then you don't need the large unit.just buy the fuel pump kit,and replace the sock/strainer also.you need to make sure your fuel pump is bad before replacing it.if it is bad,and you are doing this,be very carefull.you will be working around/in fuel!!!

always best to go with factory pump