As far as doing it it cant hurt if done right and there are some magnets in the pan that should collect any metal shavings resulting from shearing of gears and such. I just did it to mine but my fluid was nasty, not my fault as I just bought it a few months ago, but I also work for a tranny parts distributor so I got a new filter,fluid and gasket for about $12. pretty simple to do. also watch out for the filter as it holds more fluid then it looks like it should. mine kept spurting out then stopping and starting almost got me in the eye. also I hear these are great trannys we almost never send out anything but filters and the occasional solenoid for them. good luck. <img src="/forums/images/graemlins/patriot.gif" alt="" />