Can anyone point me in the right direction for a DIY tutorial for replacing the transmission in my 84 500 SE?

http://brandon314.files.wordpress.com/2011/09/722-3-full-manual.pdf

I've done this three times now on my w124. There are a few differences but really, its just:

Drain the oil and Torque Converter (Theres a window in the bell housing to access the TQ drain Bolt, use a beefy screwdriver to turn the TQ or a Big socket on the front center bolt on the engine)

Undo all lines to tranny
Support Tranny (Jack and block of wood on Bell Housing, Careful of the pan, it can bend and cause leaks)
Remove TQ bolts using same method as locating the drain bolt
Remove rear Tranny support 4 17/19mm and 4 13/14mm bolts) If you are changing the tranny mount, there is a 19mm bolt on top that you will want to loosen before you undo the bracket bolts
Unbolt Flex Disc (Drive shaft will slide back, not easy but it is simple)
Remove all 8 bolts on bell housing (the top one is the worst, LONG extension...go from flex disc over the top of the tranny, its helpful to jack up the engine, you may even want to undo the engine mounts, the starter will come out when you undo these bolts)
Break the tranny loose from the engine and lower it down. Attempt to keep the Torque converter in the tranny unless you are scrapping/rebuilding it.

Its about 5 hours on the ground, or 30 minutes with a shop lift and a tranny/engine jack.

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77' 300D, "Cartman" SOLD @ 150K (didn't know what I had)
83' 300SD, "The Superdon" 325k+ @ 28mpg
95 E320 wagon, "Millennium Falcon" 231k+ @ 24 Mpg
95 E300D, "Sherley" 308k @ 33.69 Mpg, currently anticipating a head
99 Suzuki Intruder "Trudy" @ 45 mpg

Awesome! Thanks