I have a 06 6.0 that is not starting. I went to start the truck for the first time today and it wouldnt turn over. The batteries are supplying plenty of power. Also, I started noticing a small oil leak (a quarter-sized spot wherever I parked) a few days after my last oil change (3 weeks ago) but cannot find the source, coincidence? The starter seems to be locked up to me but I have not found a single thread online saying to look at the starter. All the threads I have read talk about the STC fitting. Any help will be greatly appreciated.