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Driveshaft vibration after all new components except the shaft... 700 1990

posted by  jwalker on  Sat Jan 7 07:40 CST 2023
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last visit: Fri Jun 6 08:39 CST 2014
[RELATED]

The plot thickens!

I'm assuming all is well with driveshaft itself.

I doubt bad struts could cause the vibration. Especially since it starts at 15 MPH.

Have no experience with torsion rod bushings.

I did have tailshaft bushing failure on my 90 240. First, I would identify the fluid on the transmission. A bad tailshaft seal/bushing will allow fluid to fly everywhere. Then test the tailshaft bushing by grabbing the drive shaft at the front and shaking it hard on all directions to test for excessive movement. You are correct. Usually the tailshaft bushing fails due to its seal failing and allowing tranny fluid to continually soak the bushing causing bushing failure. My thought is if the tranny fluid isn't escaping then perhaps in your case it is due to the age of the bushing. Meaning the bushing failed before the seal.

--
Will I buy another Volvo??? We'll see....






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