Fuel gauge check
If you have a lift you don't even need to drop the tank. The rear end will sag far enough down to let you remove and replace the sender. The only hard part of the job is getting the retaining ring off. I use a hammer and brass drift to remove (no sparks). Just tap it around until you can unscrew it by hand. Replace the ring the same way, just remember to grease the rubber ring so it will not be pushed out and cause a leak. Also be careful with the metal strap that bridges the short rubber hose that connects the fuel line with the nipple on the sender. You need the strap for the gauge to work since it is the ground for the sender. Needless to say, this is a lot easier and less messy with an empty tank. Can you say siphon hose?