Originally Posted by move on
Let me just add one more point. Oversteer and the tendency to jackknife is increased by taking weight off the rear tow vehicle axle. If you are using a weight distribution hitch you should only apply as much spring force as necessary to keep your axle from overloading. Some people think you should increase the spring force to restore the load on the front axle to its unloaded condition, but this is wrong. Truck manufacturers warn not to exceed 50% (in some cases 25%) FALR (front axle load restoration).
Another excellent point. Owner manual for my 2020 GMC HD says no weight distribution is necessary, even up to the maximum tow limits of the vehicle. But if I really want, I can add 25% FALR.
Based on CAT scale and driving comfort data, I have found that in my rig the most comfortable driving conditions equate to about 25% FALR. This is nothing close to the 50% or 75% that I see a lot of others doing. Stay safe, folks.