This webinar was presented on 8/5/14.The link for the presentation handout: https://tinyurl.com/y9gc2a5a
youtu.be
Watch that video and it will answer the questions you’re looking to get answers for.
If you’re looking to DIY, it’s a pretty user friendly transmission to do at home given you have a few specialty tools. There are OEM kits that come with the TSB for fixes on OD clutch pack, provided with new steels as well. The valve body is the same, OD/UD is the same, pistons the same, gear set the same, planets and reactions the same. I grew up in a transmission shop with my old man so I learned quite a bit. I’m no pro builder by any means but I’ve hand hands on everything from poweglides to 6L90s and RFEs. I just finished my building 66FRE after having some odd issues. Used an OEM mopar kit with a couple sonnax upgrades for aread that lack. Installing next week when I get an afternoon to finish.