Update on the truck. Still working on it here and there. It is my brothers truck and he lives in a different province. So when he comes out to visit I give it a shot again. So this time I replaced the drivers hub bearing as a mechanic told me that's what it is. Nope, didnt fix it. FFS! I should of known that isnt what it was. Wouldn't make sense the noise only comes for two seconds when you let off the gas...