George,

Ohh you have a project on your hands....

I rebuild these, and many of your hard parts are just beat-up compared to a passenger car. The frictions look great. What kind of fluid where you running in it?

How come you did not up load the pictures on to the peach parts, so the pictures live forever as I have seen two great rebuild threads where people do these great DIY's but the pictures die-off five to ten years later because the pictures are externally hosted...

Anyways, what I would, so you are not buying a pile of hard parts. I would get a W220 from the self serve junk yard.

Row52 | Search Results

https://www.lkqpickyourpart.com/locations/


The bell housing is $500 or so dollars, but you do not have a picture of the whole inside of the bell housing as it might be identical to a M112/M113...You may just get a machine shop to one-thousandth or so. Pump gears are the same on all 722.6 and 722.9, but the steel portion of the pump mercedes updated to a roller bearing for some 722.9 and maybe some high-powered 722.6's too. I know Sunvalley transmission machines their own pockets for roller bearing on the steel pump portion, and the bell housing pump plate area... Now, you have seen this? Steel pump plate for this problem-look at half way down for the You-tube..

New revised 722.6 service manual - get it while can - Mercedes-Benz Forum

K2,B2&B3 I have only seen the aluminum like that. Again you may luck-out with a W220 S500. I would press-out the pinions to put new copper washers..

Output Shaft/Center Planet Pinion Washer - 78580C-W - Sonnax

B1 large cage is on S500/S600 transmissions, and they are never beat up, so can get one there with a large basket, and remember you have a bonded piston behind the basket that needs to be changed.

I want to say yours has the third generation sprag which is 0.92 in height, but measure what you have...

Make sure you replace this bearing, and the teflon seal, or you will kill your transmission...

Bearing & Seal Kit - 68410-02K - Sonnax

The bearing is SOB to remove without the proper extractor...

The steels are Identical on all these 722.6 and 722.9...

Make sure you are right at the minimum gap clearance on the frictions, so it will mean you will need to buy new spring clips...

Remember you will need new pump bushing and stator bushing too

Rear Pump Stator Bushing - 68915-01 - Sonnax

Pump Bushing - 68004-01 - Sonnax

if you can find someone to machine a larger pocket, I'd get a larger one..

Pump Bushing - 68004-02 - Sonnax

Ahhh Go with a CVC torque converter as it has the sonnax updates too..They are sold by Whatever it takes..

Torque Converters Distributors Page - Consolidated Vehicle Converters, Remanufacturing Torque Converters for Automatic Transmissions

Whatever it takes transmissions has a great exploded view diagram of the 722.6 on their site

https://www.wittrans.com/

Download the catalog to get the diagram

https://www.wittrans.com/catalog

All the best,

Martin