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Bad vibrations


nodwas
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Hi all,

I have a V8 2004 with 125000 KM on it. (auto)

I use it to commute and also offroad (dunes tracks)

It has been well maintained however yesterday it started vibrateing badly when deccelerating and when accelerating and when cruising over 120 KPH.

Also the revs drop very low when reverse is engaged and some strange clunking noise (not there before)(more prounounced in low ratio)

One Tappet is definitly lifting as well. The fluids are all ok including the diffs. I also had the front prop shaft changed not long ago 100000 KM

Any ieas what it could be? My ideas were gearbox/diff/rear prop shaft? but then im defintily not an indepth mechanic basic only.

cheers eveyone!

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Totally agree, I fitted new prop doughnut 3 months ago to my disco due to bad vibrations at 55-60mph. Took a drive saturday and had the vibration back. Looked at the rear prop thinking it was the uj but was the doughnut again. Word of advise.........dont buy cheap one from flea-bay..........they dont last. Now going to replace rear prop and diff flange for the uj type.

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Totally agree, I fitted new prop doughnut 3 months ago to my disco due to bad vibrations at 55-60mph. Took a drive saturday and had the vibration back. Looked at the rear prop thinking it was the uj but was the doughnut again. Word of advise.........dont buy cheap one from flea-bay..........they dont last. Now going to replace rear prop and diff flange for the uj type.

If you replace the doughnut you also need to replace the support bush inside the end of the propshaft. The doughnut is not designed to support the weight of the prop or keep it centralised and if the support bush is worn the doughnut will last a matter of months.

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