No Reverse! Transmission rebuild help. 722.354

[booyah]

I'm about to pull the transmission off of my 1992 400E with the 4.2 v8. A few months ago the car started acting strange with the reverse gear only. It was making strange noises, then completely stopped working. I have searched the forums and found that many people are saying that it's the reverse clutch. I have a complete overhaul kit with clutches.

My concern is a technical bulletin I found http://www.europeantransmissions.com/Bulletin/DTC.merc/97-20.pdf

Basically saying that if there is no reverse then the problem is a accumulator switching on control valve or the accumulator switching on piston... thats found in the valve body.

What parts do I need to make reverse work again? I've looked at shift kits, but I think those are for the forward gears only? Anyone with any expertise or knowledge on this would be great. I've talked to Phil at peach parts and Roy. Thanks in advance for the help!