Replaced mine last summer. Left it in its original spot. Not very easy to access. Had to lay on top of the engine to reach down to dis-assemble and assemble, so I'd recommend some cushion to lay on to make it more comfortable. Un-bolt the fuel filter housing and move that aside. I did have alot of trouble re-starting. But once it got going it was just fine. Up until recently was getting 15 - 16 psi on the gauge, but now I'm reading 18 -19 psi. Have no clue why the increase in fuel pressure.
Jim T.
1998. 5 24v, SLT, Extended Cab, long bed, 2wd, MBRP S/S exhaust, Isspro Mech Fuel Pressure gauge, Linux Bed