A weight distribution system would definitlely help some. I have one installed on a 16' tandem axle horse trailer. With the trailer hooked up empty (3800lbs) to my 03' extcab 4X4 my truck squat almost 4 inches. After I had the weight distribution system installed on the trailer my squat was reduced to less than 3/4 inch. If you dont have one already, hook up trailer brakes to your trailer and mount a good controller in the cab and you'll have no problems w/ that kind of weight. My truck easily pulls my trailer now w/ a 1300lb horse in it. ......
