Did you go underneath the truck to try to find anything? Possibly a U-joint going bad and causing a purring type noise?? It sounds to me like something is loose, or going bad, not so much a tire or driveshaft issue. Check the imput shaft going into the transfer case, or possibly the trans mount or something along those lines. That sounds to me to be where the problem area lies.

 

ya i thouht something about that nature. i havent done that, ill do it. what should i look for, what doe it feel?

 

what should it look like or feel like? and where and what is the imput shaft, the part where the driveshaft conects to and goes into tranny?
sorry ive never heard of imput shaft.

 

I would have all your wheels "Road Force" balance. The machine will be able to tell if your rims are true and if you have am out of round tire. It's surprisingly common these days to have an out of round tire!

 

Im gonna do that, if not, ill just wit till the warranty kicks in which should be in the next couple days, and tell them hey theres something goin on with the truck need you to fix it. thatll be the best way to do it.

 

Death wobble? Naw, I'm just messing with ya! LOL. I'm with everybody else on this, I too think it's an out of balance tire. IMHO, of course.

 

had that happen to me and all the balancing done wouldn't take care it. Went away after i put new tires on it. Some tires are just bad enough to cause this and you mention it goes away after reaching a certain speed.

Have them rotate the tires next time along with the balance. If its a bad tire you will feel it differently since it will be on the other side of the truck. make sense?

 

Ya, tha makes sense cuz i do feel it more on the driver side. ill get that done soon enough. thanx everyone for teh help. ill keep yall posted.