talk to master tech about the band adjustment, he is a chrysler certified transmission tech for a dealer, he knows his stuff.
on fluid, use only mopar approved ATF +4, mopar, valvoline, there might be others im not aware of, although i dont think mobile1 is on that list. (if you use so mehting else you could tear up your transmission)
i would just get the filter from the dealer and be done with it.
and remember NEVER EVER EVER put anything besides mopar approved ATF+4 into a chrysler motors transmission unless you want to be replacing it in the not too distant future.