High speed vibration

[supradaddy0803]

I had the same problem and found that the jerk that had mine before me didnt put the balance points back to line up there should be a matchmark every where the drive shaft comes apart because at this point in your cars life it has probably had new u joints look at ever flange and try to see if there is a white mark and line them all up. I just got done fixing mine today and no vib all the way up to 145 so its good.

[SupraRed]

yeah apparently the guy who owned the car before me did the same thing but there are no marks on it, so I replaced the steady bearing (center support) and all three U-joints so now I think im gonna take the driveshaft in to get rebalanced. I did some trial and error with the drive shaft and I still cant get the vibe out so I think I'll just take it in to get looked at.

thanks for the input. I should have it workin 100% in no time.

[rnoswal]

Try jacking up the rear end of the car and see if you can wiggle any of the back tires. If so then the bearing needs to be replaced. That is my problem, a high speed vibration. The driveshaft and carrier bearing are all in good shape, but when checking the rear wheel, I noticed that I can wiggle the passenger side but not the driver side. I haven't replaced it yet as I am doing the head gasket and a few mods, but when I finish I will let you know if that cures my vibration.Russ

[theWeezL]

usually you can just repack the bearings and not have to replace them...torque'ing them to proper spec is important.