I have a vibration at any speed. A friend said that rotating the driveshat 180 degrees might help. Anyone had this before. Thanks

check the u-joints and look at the tires, maybe a tire out of balance. Unless the driveshaft threw a weight I can't see how it would just get out of balance.

How do you get a driveshaft balanced.

where are you? there's a good shop in troy michigan. if interested i can look up the info.
john

Ontario Canada, What kind of shop, Maybe these one around here. Thanks

Did you replace the u joints. If so check them and make sure they move freely. Sometimes when you take the old ones out it squeeses the ears on the driveshaft in and this tightens the u joint up. Also check your motor mounts.

Notice how many are pointing to the drive shaft. Excellent starting point. Someone I think it was this forum took there drive shaft off for inspection (because of vibration) and found mashed bearings in the cups of the universal. Plus the ends that the cups go onto where starting to destroy. This person could not tell anything wrong when the drive shaft was on the car, Said it didn't feel loose. I think he mention hearing a thud when put into drive. If you check a search you may find that post. Its been a few months

Where in Ontario are you?Im in Sault Ste. Marie,Ontario and we have a shop here that does great work on driveshafts.They can balance,alter length and custom build shafts.Lemme know!
Gerry.....

Near Barrie Ontario Thanks 1970 Would there be a shop around here that you would know of.

make sure you got the right flywheel, some are external balance some are internal.

does it vibrate only when your moving or at an idle with the car outta gear?? or both ??

I found out my vibration was a motor mount. Going down the road it would vibrate but if you pushed in the clutch it went away.

Gotta be someone near "Boomtown Barrie"that does that sort of stuff.Try Yellow pages under "machine shops",thats where ours is listed.If a small town like ours has one,there has to be one in or near Barrie.A vibration at "any speed" sounds like something serious.Maybe a bent shaft?
Gerry...

L89sedan, only when moving, i have soild motor mounts, they are tight, this just started this summer. had the car for 4 years now. Thanks