I have a 2011 hd 2500 4x4. with 25/60/20 tire with load range E 10 ply tires This thing is the roughest thing i have ever driven. I let the air presher down to 45 pounds and it is alot better. Is there a tire out there in a 6 ply stock size? or even and mybe a little taller that i can buy? I dont pull a trailer much and if i do its a small 2000# max.