my yukon drive like crap

[ID_Escalade]

Well i have a 00 yukon all stock accept wheels and tires it has 20 s with 275/55 tires, and when driving down a street that has a little bit of wear on it the yukon will go in the ruts and pull like u dont have any control, i checked tie rods they are good checked ball joints they seem to be good, need some help thanks guys

 

[Modded]

That means you have Bumpsteer.
Which is when you hit a bump/dip and the car pulls in a certain direction right?
It can be eliminated by following these steps:http://www.mustangmonthly.com/techarticles/mump_0602_how_to_correct_bumpsteer/what_is_bumpsteer.html

 

[Max]

Pitman and idler arms could be toast as well as the wheel bearings.

 

[Eagle]

That's not bumpsteer, that's tramlining.

Could be wheelbearings or simply could be the tires.. max has some good suggestions too.

One last thing, How do you know it is all stock? no chance the Torsions hve been cranked on which could throw the alignment off?