you could have a bent wheel or a bad shock.
-Bret
Hey you gear heads,
> I need some help,here's the problem, I recently traded for a 98 Chevy 2500
> 4x4 ,the lady that owned it just put 4 new Michelin 265x75x16 tires on it
> ,well at about 40mph a lope comes in the truck and at 45 the seats are
> jumping,the faster you go it will smooth out,, first guess is tires are out
> of balance, ,had that done 3 times ,still same.. had 2 new tires put on
> rear, they warranted them,tires are ok truck still lopes at 45 like the rear
> tires are out of round , WHAT else could be causing this I am at my wits end
> here,any help would be welcome.. gene
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