Pre-steps: Disconnect battery; empty gas tank (tank feels as light as plastic, but holds 42 gallons); relieve pressure; and raise rear end of truck up on jack stands. Step 1: If rusty, spray heat shield and clamp bolts with PB Blaster. Step 2: Place floor jack with small piece of pressed board bolted to it under tank and raise until just under heat shield. Step 3: Remove heat shield bolts and heat shield. Step 4: Disconnect fuel filler and vent line hoses. Step 5: Disconnect pump electrical connection & ground located on top of frame, accessible through the inside rear driver wheel well. Step 6: Place floor jack under tank again and raise until just under tank. Step 7: Remove tank clamp bolts. The clamps are hinged so once the bolts at the rear of the truck are removed, the clamps come off. Step 8: Lower tank carefully until you can see top of tank and sending unit. In my situation, the tank was stuck with crud and frozen moisture and had to use a pry bar to loosen tank to lower it. Step 9: Disconnect fuel lines and vent hose. Step 10: Lower tank to the ground. Note: it was tricky getting fuel filler & vent hoses up and over frame while lowering tank. Step 11: If rusty or cruddy, spray sending unit with PB and clean. Step 12: Open locking ring and CAREFULLY remove pump so as to not break plastic clip holding floater arm (like I did). In my case, I used a little JB Weld and a stainless steel zip tie to re-secure arm. Step 13: Switch out pump and strainer per package instructions. Step 14: Re-install using same steps in reverse.