Reply to "Driveline vibration after lowering car?"

davidnunnMember

Perhaps what you're experiencing isn't due to the rotation of the shafts at all. You wrote "...especially pronounced when hard on the throttle in a lower gear". Are the splines between halves of the shafts in good shape (well greased, not bent or broken, worn excessively, etc.)? What you may be experiencing is the shafts "locking up" when you accelerate and not being able to slide in and out smoothly, to compensate for irregularities in the surface of the road. In such a case, they won't slide in and out, they will "jerk" or "hammer" themselves in and out as the suspension moves up and down.

9/8/1812:26 PM

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