Hey guys I just received a 4L75E and have to swap out the output shaft to make it work in a 4WD application.
I've only rebuilt 10 or so 60E's and don't have endless knowledge on them. If you guys would like to know what is in one I would be happy to oblige. The issue being I don't know everything to look for especially in the valve body.

So, I will post some pics of what I see and if you want to see more or have me look at something specific please chime in!

 

Here's what I have apart now.
The 2nd and 4th servos are the Sonnax Super Holds. I'm not sure if the 2nd servo comes with the springs already in it so I took it apart to see which ones were there.
I'm thinking the 2-3 shift valve is also the Sonnax Heavy Duty
2-3 Shift Valve. (Based on the hole in VB wall) I don't have it apart yet to inspect.
The 1-2 accumulator valve has the YZ stamp in it which I believe is just the latest one they are using. (correct me if I'm wrong)