You'll need the above tools and supplies too change your oil. Get a drain pan that can take 2 gallons, a funnel, an oil filter wrench, a 15mm wrench and a grease gun. I'm not to particular about the type of grease. I'm using Jet-Lube Alco-EP 73 Plus which is a multipurpose high temperature water resistant red colored bearing grease. It turned out that I had a couple of cases of it and it works good. When I run out I'll just buy a good quality name brand grease at the auto supply store. AMG recommends NLGI-LB grade chassis grease. You will need 2 gallons of Shell Rotella T or equivalent motor oil. Make sure the oil is for a diesel. Get a Delco PF-1218 oil filter. I also like to have a box of good quality paper towels around and some old newspaper, rubber gloves and a creeper.

It's always better to drain the oil when it's hot because it flows better rinsing out more of the old oil. Take the truck for a ride and warm it up or change the oil when you get back from a drive. Spread newspaper out on the garage floor under the drain plug and oil filter area. Put your drain pan on the paper and carefully unscrew the drain plug with the 15mm wrench. The oil will be hot so be careful it doesn't spill all over you. That's why I like the rubber gloves.

While the oil is draining unscrew the oil filter using the filter wrench. Make sure that the drain pan is under it because oil will pour out as you loosen it. Take a clean rag and wipe down the area where the oil filter screws in. Take your new filter and coat the rubber gasket with oil and screw it onto the engine until the gasket touches the sealing surface. Tighten it one turn after this. If you over tighten it will squeeze and distort the rubber gasket causing leaks. Wipe the oil off of the filter and the surrounding area. Wipe the the drain plug off and clean the oil pan where the plug screws in. Screw the drain plug in and snuggly tighten it. Don't over do it or you will strip the threads. Too loose and you will get a leak. Some drain plugs have a little rubber gasket. Wipe all the excess oil off of the bottom of the truck.

Open the hood and find the oil fill tube. Remove the cap and wipe the tube and cap off with a clean rag. Using the funnel pour in 2 gallons of oil. Pour slowly or the oil will spill all over the place. I like to wrap some rags around the filler tube to catch any oil that misses the fill tube. I put a little oil on the inside of the cap so it's easy to remove the next time. Wipe up all the spilled oil. Start the engine in a ventilated area and check your oil pressure gauge. As the oil filter fills up the pressure will go from 0 to 30 / 40 PSI (approx). While the engine is running go under the truck with a light and check for oil leaks at the filter and around the drain plug. Shut off the engine and let it sit for 5 minutes and check the oil level on the dipstick. Don't worry if it shows past the full mark. The oil in a diesel will turn black shortly after changing it.  It's just the ash from the diesel fuel burning.

Pull the newspaper and drain pan out from the bottom of the truck and pour the drained oil into the 2 empty oil containers and dispose of properly.

Go back under the truck with the grease gun and some rags and pump a few good shots of grease into each fitting. I pump grease into the fitting until I I see old grease seeping out. The exception to this are the telescopic slip joints on the front drive shaft. If you pump in too much grease you will pop the cap off the end. Wipe the fittings off with a rag before and after you grease them so you don't inject dirt into the joint.

Some of the fittings on the drive shafts and U joints won't be rotated toward you. You can either move the truck or put the transfer case in neutral jack up one wheel and rotate it until the grease fittings appear. You'll need to do this for the front and the rear. Don't forget the fittings on the steering column. There is one under the hood and one or two inside the truck under the bottom plastic kick panel above the brake. You will have to start the truck and turn the steering wheel to line up these grease fittings.

Whenever I change my oil I check all the fluids under the hood and the transfer case. I go through the truck from top to bottom and look for wet spots that could indicate leaking seals.