Welcome, One thought, their will be more,
Lost a wheel weight?

 

My Guess is wheel Balance
Steve
DOC Pres

 

where do you feel the vibration? (seat, steering wheel, etc)? or do you just hear it?

?tom

 

My 05 limited has a little hum or vibration also at 70-73mph then goes away. not sure what it's either but it's something that I have read about as nature of the beast, however I'd check the ballance at that speed.

 

For reference I have no vibrations in my 05.

Wheel balancing is certainly the most common speed variable vibration.

 

My 05 limited has a little hum or vibration also at 70-73mph then goes away. not sure what it's either but it's something that I have read about as nature of the beast, however I'd check the ballance at that speed.

There's a TSB for exhaust resonance at those speeds
Steve
DOC Pres

 

just put on a new set of tires and it also did it with the old set?Its more like a hum and you can fell it in the seat and stering wheel from like 40-55 and then aroun 70-75 then it goes away

 

I think its resonance
Steve
DOC Pres

 

Check and see if a TSB for resonance is on the '06. I had this problem on my '04 and the TSB fixed it but that was well before the '06s came out. I'd think that problem should have been fixed at the factory prior to the '06 model year.