Hello all. I have ran into a issue that im hopeing im can get assistance with. I have a 2007 f350 6.0l crew cab DRW lariat 180xxxmiles it has devolped a oil leak that runs down back side of block. I replaced hpop and oil cooler and resealed the ipr and new screen and new oil pressure switch. Sealed it all up right double checked torque etc. Oil leak still seems to be there any ideas what to look at next before i take it to a shop.