Drive Shaft Question

[vande17941]

Had a "knowledgeable" W113 mechanic change the driveshaft middle support rubber bushing. Now it seems the shifter (manual) vibrates (and the car) like crazy at high speed. Is there anything that was needed to be removed or did the two halves of the drivesshaft have to be "matched up" in the same orientation? I'm looking for someone who has done this job and can tell me what it entails so I can either have him fix it right or do it myself. Thanks

[ja17]

The drive shaft halves should always be marked before dis-assembly. Make sure that the drive shaft flex disc and centering is assembled correctly.

[vande17941]

Thanks...that was my thought too...that he put the halves back together  differently and the driveshaft is now out of balance.

What would the other things do that would be of concern...flex disc, centering etc?

[Benz Dr.]

Check that the holes in the flange aren't worn. If the bolts came loose it can really wear the drive shaft and the flange on the trans out put shaft. If your guy didn't install a new hanger bearing I would do that. Any good bearing place will have that - maybe 15 bucks.

[mBdrvr]

Another question regarding drive shafts:

Any suggestions on getting the two rusted halves apart?

Thanks,

Paul

[Benz Dr.]

oooooooohh......... that could be fun. I guess you could try a bit of heat on it. Make sure you keep the U joints cool if you do. Heat and then spary something like liquid wrench or similar on it while it's still warm. Tap it back and forth until it starts to move. Make sure you mark the halves so they go back together properly. I use anti seize so things like this won't happen.