PeachParts Mercedes-Benz Forum - View Single Post - Best practices for W123 sedan rear suspension rebuild

samiam4 · #11 10-22-2005, 07:04 PM

I'm sure there are writeups on "front pinion seal" replacement here....

Basically, after you take the drive shaft loose. Use an impact wrench to break the nut loose. You could count turns, mark the nut/pinion relationship with paint or a scribe. Those things are setup very exact, so you want to put it back exactly with the nut in the same spot. Pull yoke and replace seal. Then tighten the nut back in the same spot. MB bends the nut over to be a locking featur- I believe. Anyway, you can add a little locktite for good measure or use the new nut and make sure you've turned it exxactly the same number of revolutions and degrees.

Michael