My rear flex disk was on its last legs when I was doing my engine conversion and I finally got around to replacing it. The front disk was almost new so I did not replace it.

Previously I had fairly severe vibrations at low RPMs in third, and some vibrations in 4th. The new flex disk has cleared these vibrations up by about 90%. It is still not as smooth as my 240D was, but this could be due to the inherent vibrations from a 5 cylinder engine. I hope the fix is this easy for the others with this vibration problem.

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1979 240D- 316K miles - VGT Turbo, Intercooler, Stick Shift, Many Other Mods - Daily Driver

1982 300SD - 232K miles - Wife's Daily Driver

1986 560SL - Wife's red speed machine