Checking flex disks - PeachParts Mercedes-Benz Forum

DrLou · #12 09-16-2014, 09:39 AM

Quote:

Originally Posted by psaboic

As for the thumping/vibration. It will only do it if I am in 2nd or 3rd gear at about 25-30 MPH going up an slight incline and I am pushing it a bit (or if I have a good bit of weight in the trunk) If I back off the power it will go away ... do the drive shaft parts have to be separated while it is on the car, or can I just remove both flex plates and the bearing support, and remove the drive shaft as a whole unit, then mark and separate them on the bench?

I think you asked Stretch - so, apologies if I'm threadjacking:

Lot of above sounds like motor mounts - (though I don't see any connection with the engine being warm...), because all of those shifts will torque the engine around, and only do so more under load. In fact, if you do need motor mounts, be sure to do this before reinstalling the shaft. You'll want all the alignments/distances to be correct. Your rear transmission mount should also be inspected; this is a cheap enough replacement.

Hope none of this sound is coming from inside the trans (and your trans fluid level is AOK?)

Yes, I removed my entire driveshaft as one unit - did all work on the bench (which looked a lot more like a couple of 2x8s on my driveway than a 'bench'!). Since you're re-furbing the whole thing, this seems the best way to do this job.

Be very sure to mark spline alignment of front/rear shafts. Purists will also match up the front and rear yokes to their respective mounts on trans/diff - this doesn't seem important to me, but; could it hurt?(!)