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check for a HowTo within the TechTips forum -
http://www.cadillacforums.com/forums/cadillac-tech-tips-how-fix/
=====================I appear to have a bad axle seal. I am leaking fluid on the drivers side where the axle enters what I think is the transmission case. I have not pulled the wheel to look closer yet since I don't know if this is likely something I can handle myself. Is the a common failure on a 2003 DHS and something a shade tree mechanic can fix? Or is this something I should not even attempt to handle and take it to a dealer.