This is not a big job. I will pass on a few tips
1) When taking the outer case off make sure you know where the screws have come out. There are a few different sizes. If you take off the screws then put them in a piece of cardboard. I made a mark that represented the Oil Window, and put them in order so I did not make a mistake putting them together. (the second time, dont ask) It can save hours looking on the web trying to figure out which one goes where.
2) Get an Impact Gun and a socket. You can find them at Home Depot, they have a great return policy.
3) I did not change the friction plates, upgraded to the Mean Streak Spring 7000K and still good
4) The Judge washer was a nice idea, except he was on vacation that week and by the time he got home I was done already, not doing it a 3rd time
5) It can be done in a few hours the first time. Much quicker the 2nd time, (again dont ask) Oh yeah make sure when you oil down the friction plates, the last plate is not hidding in the bottom of the oil bucket.

(again dont ask)
6) Make sure you torque everything to spec... The instructions on Gadget's site were excellent.
7) Last thing... Check the bottom of the oil bucket.. I might have said that already...