2013 2500 HD Pulls to the right.

[Stimcon]

Hi everyone I have a 2013 Sierra 2500 it has 22000 miles on it. I bought it certified 3 months ago, it came with a leveling kit and a new set of BF Goodrich all terrains installed. I've had it back to the dealer 4 times now and they cannot seem to fix the pulling to the right symptom. They have realigned it, put a new set of tires on it and still pulls,to,the right at almost any speed. Even going 20 mph it still pulls. They are trying to say that it's a big truck that sits up high and they just do that. I know something cannot be correct on the truck. Any advice?
Thanks

 

[98trck]

shot in the dark here
have you looked at the brakes, maybe a caliper not releasing, or stuck and not floating
two or four wheel drive?

 

[Stimcon]

It's 4WD.
I did mention a possible break issue, they said they checked. I'm at the point that I'm getting embarrassed to bring the truck back to them. Not sure what else to do.

 

[98trck]

is there a sway bar on the front end
disconnect one end link is both ends at the same height
if it don't look right remove it and put it on the flat ground then you see for sure if it is bent
I had a '77 Camaro with a bent sway bar the car would turn better one than the other
who knows how that would affect your truck

also are both end links the same length?

 

[eliteroads]

Bring it to an expert alignment shop, most dealers don't have the capacity to diagnose vehicles with aftermarket parts installed