MustMakeAmends,

It should be a fairly straightforward job for a competent shop to replace the suspension arms, but they do have to be aware not the tighten the bolts until the entire weight of the car is on the wheels. If they're tightened in other than the neutral position, the rubber bushings will wear very rapidly. They will also have to realign the wheels when they're finished. The differential mounts (the rear ones, anyway) require a special puller/installer, and a fixture to set the proper distance to the front mount so that everything lines up properly without undue stress. To do it properly, the diff needs to be dropped as the bushings are supposed to be removed in the direction of the front of the car and installed the same way, from back to front. I don't think they could do the job without removing the diff, actually, because there wouldn't be room for any kind to puller with the diff in place.

Here's a link to the Braingears.com site, which has on online version of the MB service CD. You need to download Adobe Reader (I recommend v7.0, it loads much faster than v6.0) and then go to the specific service operation you need:

The main Braingears MB page: http://mb.braingears.com/ . Click on the 124 Chassis disk 1 for engine and electrical (I believe) and disk 2 for just aobut everything else.

Here's a link to the Rear Axle operations . Click on operation 050 for the differential mounts and operations 110, 111, 112 and 113 for replacing the various suspension arms. Be sure to also check out the Technical Modifications and Programmed Repairs for information about updated parts, as there are some with the suspension links and their fastening hardware.

You can print these out and start your own service manual as you go along. I've found it to be a very useful resource.

Hope this helps

Gary