NO, The PSI on both pumps are different. Won't interchange.
you have to drop the fuel tank and the pump comes out the top
It has a 42 gallon fuel tank.
Have a fuel pressure test run.
The 1998 K2500 Suburban has a 44 gallon gas tank.
yes
The only answer is that you have water in the fuel system.
No or low fuel pressure
Yes
It is located on the frame just forward of the gas tank.
28 gallons
It is inside of the fuel tank. You will have to remove the gas tank to service the fuel pump.
It is on the fuel pump sending unit that's inside of the gas tank.