well finally figured it out!it was the rear end,the u bolts were hitting the rearend causing it to bind up.that`s it in a nut shell..I AM STUPID,i made the mount too close to the rear that why it was touching the center chunk,causeing it to throw the truck over to the other lane.i would like to THANK everyone who wasted there precious time to my dumb ass trying to help me..THANKS AGAIN....