My oil leak seems to have gotten a little worse. I took some pics of what I believe is the source of the leak(s). This is looking in from the fender wells. The first picture is the biggest leak. Can someone tell me what these parts are and if I am on the right track? Looks like each one of these connectors is leaking and some worse than others putting oil to the rear of the engine and down to the tranny.

 

Glow plug harness o-rings.

 

That is what I found out by doing some more searching, thanks. The dealer quoted $400 labor to change both of them. Does that sound close? Thanks again.

 

yup sounds right to me.
being that you have an 04 and your leaking oil down the back of the engine if its an early build you may also have an issue with the icp sensor

 

No. Its a late build the ICP is on top. I can't find another leak anywhere so this is where I'll start. No other issues. I just had the FICM done last summer and the turbo serviced. EGR and oil cooler have been replaced and coolant filter added. The truck is near perfect outside this oil leak, which is just a pain in the butt on the driveway.