Just thought I would pick some people's brains here. This is my fourth automobile and all I've ever done in the past to any of them (Transmission Wise) are transmission flushes either every 50K miles or 3 years, whichever comes first. I did a flush in March 2010 on this truck, figured I would do another one in the next couple of weeks since it's closing in on 3 years. I noticed a while back that autozone has a listing for a filter for the truck: http://preview.************/aaymaxm Should I have that changed at some point? I suppose by the old fashioned dropping the pan and changing the Fluid one could change a filter at the same time. Guess it's good that I went into IT, I didn't realize there were transmission filters. While yall are reading. Any thoughts on when to change Front Diff and Transfer case? Its only been like 12K miles but it has been 2 years as well. There I've never really been able to find anything from Ford that says to do it after X miles or Y period of time.