mj1pate

As mentioned in previous posts, after (evidently) successfully replacing the trans TC seal, front pump and piston seals, I would list the posts that helped with getting this job done. As earlier mentioned, I'm not the person to add clarification to any of these posts, as I am still a beginner, albeit with experience that will be forgotten as I never intend to do this again. I just did as suggested by more experienced forum members and pro mechanics.

Please do however refer to my post suggesting tools you will need to gather together beforehand:
https://rennlist.com/forums/928-foru...l#post18063970

Refer to the shop manual first. Yes, navigating through the MYs can be confusing for those of us not used to tearing down large parts.. Greg directed me away from following manual instructions replacing seals in MY 83 at times (I was replacing those in a '88 MY trans).

Dwayne's write up is a good place to start with doing things in order:
https://rennlist.com/forums/928-foru...-w-pics-2.html but please refer to my suggestions on safe tools.

Seals Parts List. This is a pretty good seal shopping list to get started. There are other seals/lubricants that will be necessary, but this will be a nearly full list, '85 and upwards
https://rennlist.com/forums/928-foru...ich-seals.html

What do the front pump, piston, seals look like disassembled? Dig deep down into this thread for great piece-part pictures which help explain how parts and seals go together. A real help when you have to take a break (big break in my case) and wonder how innards should go back together.
https://rennlist.com/forums/928-foru...ion-wyait.html

Stan reminding that the whole business; labor and parts can can come out worse than before without properly lubricating the bronze bushing the TC seats on BEFORE installing the TC.
https://rennlist.com/forums/928-foru...lace-seal.html


Pay attention to the use of special tools necessary to replace the front end seals. Again, take a look at the recommended "tools" post mentioned above. Buy a machine press if you don't have one for heaven's sake., if you're doing this kind of work.
Look at the picture of the spring retainer that holds down the batch of springs to the piston. The machine press helped ease the retainer off the springs once the retainer c-clip was removed. The machine press did an equally fine job bending my spring retainer plate when I went to reinstall it. The spring retainer plate presses down over a lip with zero tolerance and the retainer got caught on the lip and bent under the machine pressure. Roger to the rescue with a new one. As stated in the shop manual, measure the depth of your TC before removing it. Installing one is a gentle process requiring it be installed the full depth, without crunching/clunking it down.
https://rennlist.com/forums/928-foru...ols-ideas.html

A thread with some front pump torque values and a reminder that this work may not be best suited for shade-tree brake-work/tune-up hobbyists. Navigating the shop manual is still confusing to me at these levels.
https://rennlist.com/forums/928-foru...ols-ideas.html

A brief post discussing replacing the TC. Look, even I know that the TC should be replaced with transmission standing up (I read the manual! ). No offense to the poster. Please to get this type work done safely with least pain, again refer to my suggestions on tools in the thread above.
https://rennlist.com/forums/924-931-...nsmission.html

Lastly; You'll no doubt rebuild your torque tube if the trans is dropped. I have some suggestions on this.. BTDT. Read Dwayne's writeup, referencing how straight forward it is. That depends. All the available TT bearings supplied by our retail sponsors are upgrades. This suggestion I have and I suggest you take it to heart. IF your retail provider provides an installation guide with their bearings and you want to do the job yourself; fine, you should be OK doing that. Just like Dwayne did. IF your retail provider does not provide installation instructions for their bearings then I'll bet for a few hundred more that they will sell you a completely rebuilt shaft, essentially to OEM spec. In this instance go that route. In addition, there is a DIY driveshaft parts provider that sells seriously upgraded driveshaft parts with instructions; for a pretty penny, but the product looks great. You decide what you want/need.

Again, go to the posters of these threads for more info. I'm glad I got mine done, but I don't have sufficient experience to advise like the original thread posters can.
Oh yeah.... remember there are more 30+ year old parts in our transmissions beyond front seals. If yours is a longer term keeper, you might consider a complete rebuild from one of our sponsor pro mechanics, while Mercedes parts are still available.