Yes...If you think about it, leafs are a crude setup to locate your axle. You have flexable spring steel with bushings at both ends, then a trac bar which has to keep everything in place, loaded unloaded, under power, etc. Once you start running offset springs to gain wheelbase, this induces other problems such as the pinion angle changes dramatically as the spring droops. The positive axle locating of a good link setup with proper gometry will climb better, eliminate wheel hop, and keep pinion angles more consistant through the range of travel. And since the spring/shock assy with a link susp, only job is suspension, there will be no more damaged springs.
That being said, if you have leafs now, and your not damaging them, and it works for, leave it alone. As simple as leaves are, they do work(it's amazing they work as well as they do...) So, I guess what I'm sayin is yes, a link setup is worth it....should you run out and tear your leafs off your rig and start the link project...that's up to you.... :thumb: