I'm no expert but I'll give you what i've learned in the past few months. Caster won't effect tire wear. Loose tierods will make tires wear quick. Your tie rods are probably going bad because of the angle they are at. They should be level to the ground but with the drop you have I bet they aren't. DJM makes a kit to help that by mounting your tierods on the bottom side of your spindles. I hope this helps.

 

Sounds like its camber, not caster, that's messed up. Try the DJM kit to give you a little more positive camber to correct the problem.

 

camber and toe are the only angles that affect tire wear.

 

toe is the biggest factor in tire wear. your new tie rod ends should fix your problem. those trucks do require a cam kit to align properly.

 

Well they told me (the dealer) that every thing was correct on the alignment but the caster, even the work order said caster could not be set do to drop kit, im wondering if they didn't mean the camber could not be set. They did not give me a print out of the alingment so im not sure what to believe. But they did replace my inner tie rod end's and i see those being loose can wear tires out but damn i only have 40k miles on my truck and i bought it in Nov of 05, and i installed the drop kit in Mar of 06.

So maybe i need to buy the tie rod flip kit so i can save wear and tear on my tie rod ends.

*EDIT*

I just went out and looked at my tie rod ends they look completly level to the ground....

 

your caster doesnt need to be with in factory specs, they just have to be even from left to right.... check you tires, feel them... you can see what type of wear you have. if the inner tread feels wavy, you got a toe problem. if its an even wear from outer to inner, its a camber problem... like everyone else is saying caster doesnt wear out your tires.

maybe you should install stiffer shocks, too much bouncing around can wear your tires out faster than normal....

 

man your lucky for the dealership doing this under warranty. the nbs trucks are pretty notorius about the inner tie rods going out. hell mine are gone now and the truck only has 17,800 miles on it. i'm waiting on two new ones from my buddy's uncle who runs the shop at the local chevy dealer, but everytime he gets two set aside for me, a truck comes in with them out, so there goes mine. damn it

 

I do alignments all day long on all makes and models. Toe and camber only effect wear. Caster is the position the wheel is inside the wheel well. Like another member said.

Be sure the wheel is equal on the front and back sides of the wheel, on the driver side and passenger.

The tech probally couldn't adjust caster due to lack of Camber/Caster Bolt. I'm not sure how many - or + degree's of slack/adjustment there is on your front suspension setup. ie: control arms,spindals. But it was probally adjusted, just not enough to get into green...normal manufactuer spec.

I am sure they gave you a print out of the end results of the alignment. If not, then go back and get it.

Hope that helped a little. If not, eh.

 

So i have figured out that caster has no effect on tire wear which is good. And hopefully the new inner tie rod ends will fix my front tire wear problems. And i did not get a print out of the front end alignment. And the Dealer has never said anything about voiding my warranty because of my drop.

And im running Doetsch shocks on all 4 corners. Front is not bouncey either rides and drives smooth.

 

I have a 2008 Chevy Silverado. I installed a 4/6 drop they are the 6 in. drop control arms upper and lower adjustable to a 4,5,6 i have it at 4in. by a Inez Hotrod customs I took it to get aligned and they said that its 2 degrees off , its maxed out, what do I do , he said I can drive the truck it shouldn't affect the drive ability but would really like it to be 0 degrees. HELP!

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