Can anybody post the TSB concerning tailshaft replacement to cure a high speed vibration.
Also, has anybody had this done and it fixed the vibration??
I have an appointment to try and resolve my vibration which starts @ 65mph and I would like to take this with me.

TIA

2001 Screw, 4x2, Lariat, 5.4, Bench, cd changer

 

i have same problem.a guy from this site told me to try taking the gold coloured exhaust support from the trans.see his suggestion under my post in engine pg 2

 

If this is the normal driveshaft is too short and it needs to be lengthed problem, or the tailshaft bushing is not on the output flange deal...Yes this will vibrate like the ****ens..

Went around with this one before...this also sounds like the other guys problem that Ford thinks is the tires...

Like I suggested over there, try some other tire/wheel and this will eliminate these and then start looking at the driveline..and this is a good place to begin...the shoulder on the flange should be an inch from the output shaft seal max...If that flange is not in the trans far enough, the truck will shake you out of this world!!!!

If the seal is leaking this is a indication of this...