The large O ring may not have been changed. Suggest replacing the oilfilter and O ringIt was a blessing in disguise. Parked the truck in the driveway the evening I got there, started it the next morning and saw the oil pouring out. I just pulled the 2 week old filter and can’t see any cracks or o ring issues. I’ll hang out with friends for a week until I get the new filter and oil. I hell, let’s go surfing!