I have a 2007 Knight pdq and did not get four corner weight but weighed front axle and rear. With a full load of fuel and half water 3 of setting in front and everything we take on a three week trip the front came in at 11,850 lbs and the rear came in at 19,450. so I run 110 in the front and 100 in the back. Hope this helps. tie size 275/70 22.5