97 Monaco Windsor

[ab6725]

With all you smart people maybe you can help with another problem I have with this coach, I have a vibration,shake, like a tire out of balance, Its comes in about 45 and is bad at 60 to 65, I have tried everthing I can think of. Balanced the tires, Had new tires installed, Had them balanced again, tried new Bilsten shocks(that wasnt cheap)
I can fell somethimes it changes for good or better with a hit a dip in the road and the load on the M/H changes, Any other ideas would be great.

Thanks
Andy

[GOLDWINGER2]

Have the U joints checked out.
Ji

[bbeane]

Check U joints and slip yoke on the drive shaft, yoke on the rearend. But a the speeds you are talking sure sounds like tire/wheel issue. A tire and wheel assembly will balance ok but can still have excessive run out. Try shifting your transmission manually and operate it at the same engine rpm in lower gears to see if you have the same vibration at lower speeds. If you do that is almost got to be drive shaft problems. Good luck