Am buying a travel trailer. Have owned two different ones in the past. At that time I had a 92 F250 diesel. And sway bars were not neccesary. I now own a 04DC 4x4 Tundra. Anyway, is there a set rule on how much tension to apply? Or do I do like I did in the past when I helped out my buddies hook there's up to their 1/2 ton pu's, that is, apply as much as possible?