OK, so this is the 3rd time I am taking my truck in for an oil leak. ('07 LMM). Not a drop until I hit 30K, and now no stopping it. I have had the rear main replaced, and have had the TSB on the turbo air inlet done already.
Two questions.
First, what other cause for the leak could there be?
Second, I think I read somewhere that the PCV reroute could help this. How does changing the PCV route help an oil leak?
Thanks

The PCV reroute will prevent blow-by oil from being dumped into the intake tube infront of the turbo which leaks out and runs down the back of the block and drip off the bell housing. This fixed my oil leak. use the Search feature there is tons on the PCV reroute. Kits are around $100 and will worth it in my opinion.

The PCV reroute also stopped all oil "loss" for me. I run mine the entire oil change interval and it doesn't use a drop of oil. Otherwise, you are going to literally suck about a quart of oil through your turbo every 1500 miles or so.

Thanks for the replies. I am going to look into a kit.
One thing though, I never saw any appreciable oil usage from any of these problems. Just a few drips in my driveway, garage, well everywhere I parked.
You were really going through a quart in 1500 miles?