Just buy a new one. I got one from Fastlane after the seal went out on mine and it was less than $50. As always, it was here in two days and you can do the job in about an hour or so.

__________________
Seth

1984 300D 225K
1985 300D Donor body
1985 300D Turbo 165K. Totaled. Donor Engine. It runs!!!
1980 300SD 311K My New Baby.
1979 BMW 633csi 62K+++? Dead odo