I just did it myself. Bought a pair of mounts on ebay for like, $100. It's not too hard of a job, maybe 2-4 hours for both sides, start to finish if you don't rush. Is your car vibrating badly in D but not in P, N or R? That's what mine was doing. Odds are you just need the passenger's side replaced since that's the downward force side. The one on the driver's side of my car was in good shape but I repaced it anyway.

Yours will be even easier since there's no turbo in the way. Come to think of it, I would bet you could swap out the passenger's side in about ten minutes.

__________________
-Evan


Benz Fleet:
1968 UNIMOG 404.114
1998 E300
2008 E63


Non-Benz Fleet:
1992 Aerostar
1993 MR2
2000 F250