I have a 2007 R/T...101,000 miles. There's been no transmission service done to it, but also no problems at all. I was thinking about getting the fluid changed, but I'm overwhelmed by the choices on this forum and the dealers and car repair places. My "go to" place recommends dropping pan, change filter, and refilling for about $200. The local GMC place does a Wynn's full machine flush (suppose to be 95%) for $129. Then the Dodge dealers are all different...one does a full fluid change, along with a transmission tuneup (not sure what that is", while another will only doing an exchange without dropping pan and seal. What should I do, keeping in mind my mileage? Any input would be great...thanks!