i just bought an 06 mega-cab 4X4, 6 speed. the truck was a dealer trade and had about 1k on it (no biggy). after driving it for a while i noticed it drifts to the right. no big deal i thought. after all i was putting a kore chase suspension on it with toyo 35" mt's and figured i would get everything aligned. i had the local dealership (not were i bought it) align the front end. i test drove it and it was just as bad. so they double checked the front end and said everything was in speck that the rearend was dog tracking and since i modified the suspension they won't touch it. now i feel like im slowly getting bent over. does anyone have any answers to this delimma? i've had 2 other shops check the alignment so i can't see how the front end could be the problem. how do you check and fix dog tracking and i know its not the 1" spring lift in the rear thats causing it . it was doing this prior to anything being done.

 

think i would check the frame real quick
Clark

 

If it's driving crooked in the rear (crabbing), then just loosen the leaf pack U-bolts enough to adjust each side forward or back as needed; first make both sides even as measured from spring shackle to axle tube, then test drive and fine-tune as necessary.

p.s. when the rear spring lift was done, they probably didn't get it tightened back down in the right spot - it's a simple mistake to make.

 

How Can The Leaf Packs Be Off When Theses Trucks Have 2 Locating Pins Per Side To Position Them,

 

Try rotating the tires. I have found that the even new tires can effect the tracking.

 

Well, if you don't use the pins during reassembly...