Doorman sells a 62TE replacement pan with a drain plug if you ever want to drop the pan yourself. Like said, there is a metal stop at the bottom of the dipstick tube, so I'd be surprised if you got more than a couple quarts out that way. I believe that's how it worked out for those who've tried it on other DGC sites. I know I contemplated doing this myself on our 2013 Grand Caravan, but had a local transmission shop do a pan drop, filter change and ATF refill for $75.