Need part #'s for some 722.3 trans parts

[glenlloyd]

I found this document that suggests one should try replacing a couple transmission valve body parts if there's a reverse problem. Before I pull and embark on a complete overhaul I'd like to try and replace these items.

Here's the doc:
http://www.europeantransmissions.com/Bulletin/DTC.merc/97-20.pdf

I need part numbers for the following:

accumulator switching on control valve & spring
accumulator switching on piston

I've checked EPC but cannot locate a complete breakdown of the valve body that shows these items and assigns part numbers, if anyone has diagram and part numbers for these I would appreciate it.

Thanks
Steve A