We have had our truck to shop 4 times, once they replaced front motir seals, once they replaced oil cooler and I still have the same oil drips.passanger side rear of motor I think. It is never a lot about the size of a dime and seems to drip after we have had out on hyway at 65mph for a shot drive? Any ideas?

Thoughts:

Oil dripping down after the oil filter is changed. It may be get on the side of the engine block, exhaust, and oil pan. Thoroughly clean the area with a rag and brake cleaner. Ensure the oil filter and drain plug are tightened enough. Then, see if that takes care of the problem. Oil leaks often start higher up on the engine than you initially expect.

If the fluid is pink, it's ATF--tighten the drain plug, snug up pan bolts.

Its motor oil for sure, all filters plugs are tight

Read this guide, http://reviews.ebay.com/How-to-Find-Good-Ford-Oil-Filter?ugid=10000000175115012