I took my 05 crew cab today for a service, and Im pretty new to the diesel world, so I took it to a local shop to have it serviced. The guy doing the work brought the air filter tome and said it needed replaced, since it was pretty dirty. Another guy working there noticed the filter, and said he had never seen a filter like that on a 6.0! He said all that he had seen are tall oval shaped canister type filters on the 6.0 powerstrokes,, and that they cost almost $100! The filter in my truck was a Fram layered paper filter looking very similar to the one I had in my 5.4, or maybe a 7.3 powerstroke, but about 4 inches thick. Has anyone else got a filter like this one, I tried to find a filter for it online, and the only ones I can find for an 05 with a 6.0 are the large oval canister style, and I cant find anywhere that there was a different filter available. Help me out here,, what is it, and why is it different? Thanks for your help.