Can I come crawling back to this board for some real expertise? Tough vibration!

[DanDombrowski]

I just changed the diff fluid today. No metal flakes, fluid looked totally fine. Definitely not the differential.

[winfred]

i doubt you hurt the axles running it up in the air, the bearings shouldn't really cause more then a barely noticeable buzz


cap't slow, pry around on the diff and subframe and see what moves, if it makes noise something is moving

[Tiger]

I think you are on the right track to fix this after al these information you provided.

[DanDombrowski]

I bought the car used in June of 2006, and when I picked it up, it was the smoothest car I've ever driven. The vibration slowly came about middle of last year.

[DanDombrowski]

So if I didn't hurt the axles and the diff is fine, were back to my original suspicions - flex disc, CSB, and rear diff mount.

I plan on having all 3 of these things done anyway, so hopefully it will either clear this up or at least shed some light on what is going on. Thanks Winfred!

[DanDombrowski]

Quick update - jiggling/noise in the rear got worse and took it in again. This time, detected a tiny amount of play in one of the bearings. Replaced both. Car feels much more stable in the rear, but still have high speed vibration. With the jiggle gone, I can tell that the vibration is a out of round/out of balance issue. So, gotta track that one down....

Thanks for the help everyone!