When one side of the suspension changes angle it induces the load on the sway bar... when you lift the truck you are changing the neutral position of the bar. As soon as the angle changes on the lifted truck the suspension has to work against an instantly max loaded sway bar because the neutral point on one side becomes severely different. The longer link restores the stock (or close to stock) loading characteristics of the bar. You are not changing shock values but you are lowering the leverage against them (via sway bar induced leverage) as the suspension moves through it's arc.
If the truck were perfectly level and no suspension moves, then the longer links make no difference. Once there is a side to side difference the effect becomes very apparent.
Disconnect your stock links from your lifted 100 and see if the ride quality changes.
If the truck were perfectly level and no suspension moves, then the longer links make no difference. Once there is a side to side difference the effect becomes very apparent.
Disconnect your stock links from your lifted 100 and see if the ride quality changes.