Oil leak is certainly coming from the valve cover(s), was able to view the leak from under the car following the exhaust pipe up to the heads, the oil also looks like fresh engine oil, not old gear or transmission fluid. I'll probably redo them the next time I do an oil change.
This has me thinking that's it would probably be good practice to replace the trans fluid and filter sooner than later, who knows when that was done previously. I'll have to get the filter ordered which I believe is part of the pan. I already have a dozen ZF8 bottles of trans fluid sitting around that I bought for other cars but ended up not using.
The truck is going to the body shop today to fix the cracked rear bumper and quarter panel, while investigating the damage, I noticed a couple of out of place cables coming from behind the rear left tail light, one is tapped into the tail light harness, there's also a set of RCA cables that's not plugged into anything. So odd, maybe this was used for a backup camera? The truck isn't currently equipped with one so perhaps someone did a retrofit, I was thinking of retro fitting one anyway so this wiring may be useful.
A couple of additional smaller issues to tackle, the spare tire winch isn't working, the steel cable is rolled up and zip-tied underneath with the spare tire sitting in the trunk and the radio antenna needs to be replaced as it's completely been torn off, I've seen a good write up on installing a new one.
And TPMS light is back.... yay!