Thanks “ jbaj007 ” for your input… for I have ordered the “Technical manual, 722.0 / 722.1 / 722.2 ” from: http://www.bulkpart.com .

If any of you have followed the several threads on these now infamous “ K-1 kits ”, then you probably know of: http://transmission.articles.mbz.org/k1/ which is titled:
And there was also a subsequent post that included the 7 photos that were/are missing from the article… and also included 8 short steps for installing this kit.
This post was titled
“K1 ACCUMULATOR SPRING KIT FOR 722.3-722.4-722.5… P/N 126_270_44_77 ”.

I have gleaned additional information from:
(a) http://www.bulkpart.com, and one of their sources for automatic transmission parts
(b) http://www.transmissionkits.com

Based upon what I have at this time I think I can state:

(1) The M-B K1 [ K-1] kit [ p/n 126_270_44_77 ] could probably also be described as a
“Clutch Piston Retainer Repair Kit” which is what (b) calls their similar but expanded "K-1/K-2".
(2) The full title of (b)’s kit is “K-1, K-2 Clutch Piston Retainer Repair Kit” and I have found
nothing indicating that it is sold by (a) despite their distribution of other of (b)’s products.
I also note that this K-1/K-2 kit is only for 722.3 and 722.4 series transmissions… NOT for the 722.5.
(3) The 722.3 transmission has a 6-bolt pan used on 1981-97 model M-B(s).
(4) The 722.4 transmission has a 6-bolt pan used on 1984-97 model M-B(s).
(5) The 722.0, 722.1, & 722.2 transmissions were 4-bolt pan transmissions used on 1970-83 M-B(s).
(6) Considering that the 722.5 was a newer design 5-speed tranny, there is a good chance M-B’s K-1
Kit might not work on this transmission which was on 1990-97 M-B(s).
(7) In addition to the above expanded K-1/K-2 kit for the M-B 722.3 & 722.4 trannies,
“Precision International” [ (b) above] markets a number of products for M-B transmissions, some of
these through (a). For example they have 3-levels of kits for the 722.0 through 722.4 that range in
cost from $105 to $168 through (a)… and it looks like you can purchase directly from (b) as well
but you have to call… and supposedly (b) offers “ FREE ” technical support at their toll-free phone
line.

Having stated the above, it’s beginning to look dim that I will come up with some kind of K-1 kit for these earlier model M-B’s tranny series [ 722.0-722.1-722.2]… but I have not given up yet. I’m also pressing M-B[USA] corporate for information so keep your fingers crossed and pass along any clues you might have out there.

Sam