'
18,000 lbs GVWR (close to where most people load theur 5ths) x 0.20 = 3600 lbs pin weight (x 0.25 = 4,500 lbs pin weight)
Optimal pin weight 3,600 - 4,500 lbs
5th wheel hitch weight with support brackets: 300-500 lbs. (maybe more)
Already 3,900-5,000 lbs weight from 5th wheel towing
No...