how to tell if drive shaft is out of balance
If the drive shaft is out of balance it can wear out the seal. The seal could just be old and leaking. Your trans fluid could be low. The vibration could be the torque converter clutch or a wheel slightly out of balance. U joints are easy too check. They might just be dried out and sticking.he drive shaft has to be balanced. Frequently you'll see a piece of steel-maybe 1/8 thick welded on as a balance weight. Looking at your drive shaft, you might find a place where the metal looks new or cleaner than the rest of the drive shaft. If so, it'll take a pro shop to re-balance it.