6.7L upper oil pan gasket

Do the front cover, rear cover and rear main seal at the same time. Borrow/buy the installer tools for the front and rear crank seals. Theyre great engines but they leak like sieves

Buy a case or 2 of autozone brake cleaner, make sure everything a seal/gasket touches is clean especially where block and pan meet cause if u dont it will still leak especially in the rear back corners, their is very few cheap cleaners i trust, and it dont leave a oily residue like oriellys cleaner does, these are the biggest mistakes alot of ppl make

Not exactly a weekend job. 9.2 hours. It can be done but…. Remove the transmission to make it easier.

Ford also has a lower seal kit with everything you need minis the vacuum pump gasket I think the kit is about $100. But yea its about 12hrs total. I use to do just the pans/rear main but started having come backs when the front and rear covers started leaking shortly after

Replace the crankcase vent while you are at it! Crankcase pressure blows out the sealing.

Trans will need to be removed. There are no weep holes for oil to drain out of transmission bell housing. it will have 4-5 quarts of oil in the bell housing. Be careful with the dipstick going into the rear cover, they like to break. If you’re having major leaks from multiple seals, replace crank case filter. It’s clogged. Special service tool is recommended for rear crank seal. Make sure oil…

As others have stated, not a weekend job and I would never do it without a lift. Sorry, you asked. :>)

What others advised plus use either the correct Ford sealant (Specifically for diesel applications and diesel impermeable.) or Permatex The Right Stuff black sealant. Oil dilution will always occur, and the sealant must be diesel fuel impermeable. Otherwise, it will dissolve the sealant bond and you'll back to square one.

Most leaks that I encounter on this engine are from the vacuum pump coming loose. It will look like a front main seal leak or a front cover leak and its not - its the pump seal leaking because the bolts have backed out. So - check that before you dive in too deep.