700R4 (4L60) check ball location?

-This is the stock tranny out of a '83 GMC 1500 sierre classic and it is 2 wheel drive.

So i am rebuilding a 700 and i have every thing together except the valve body. I am not sure where all the check balls go and how many there are. When we took it apart we found 13 balls in it. It has been rebuilt before but it never shifted right. Everywhere we look, its all different. Some places says it has 8 balls or 10 or even 6. Some have a big ball and a copper ball, and some dont. they also put them in different location. I am just wondering where are the right places they go and how many are there to make it run the best. Also, we only found 2 valve filters in it. We looked and sources say they have 3. we got 3, but only 2 fit in the right places. How many are there and where do they go? Please, please help me out on this.This website looks helpful. http://www.wwdsltd.com/4L60/4L60EAssembly.html