Just follow the assembly instructions backwards on the first post and you can also reference this thread by Booztd_3:
http://forums.hybridz.org/showthread.php?t=119041
remove spring/ball/sleeve setup by first removing the 17mm bolt (http://album.hybridz.org/data/687/medium/IMG_2054.JPG and http://album.hybridz.org/data/687/medium/IMG_2053.JPG)
on the inside of the bellhousing, remove the 9 front plate/cover bolts (http://www.booztd3.com/Pictures/RB%20Build-up/RB25_Trans_02.JPG), then remove the front cover/plate (http://www.booztd3.com/Pictures/RB%20Build-up/RB25_Trans_03.JPG)
remove the large c-clip/snap ring on the main bearing (http://www.booztd3.com/Pictures/RB%20Build-up/RB25_Trans_04.JPG), and the small c-clip/snap ring and washer on the striking rod that comes through the bellhousing (http://www.booztd3.com/Pictures/RB%20Build-up/RB25_Trans_05.JPG)
remove the bellhousing bolts to seperate the bellhousing from the case (http://album.hybridz.org/data/687/medium/IMG_2048.JPG). You might need a hammer to help seperate the 2 pieces.
here's the thrust bearing (on right) and matching plate (on left) (http://album.hybridz.org/data/687/medium/IMG_2044.JPG)
You'll find the thrust bearing on the countershaft here (http://album.hybridz.org/data/687/medium/IMG_2045.JPG) and the matching plate here (http://album.hybridz.org/data/687/medium/IMG_2046.JPG). Remove and keep them.
I think that covers it. Don't forget to bag everything so you don't lose them.