The track bar on the front of your Ram controls the lateral movement of your axle via a mount on the drivers side frame rail and the passenger side of the axle. In order to reduce vibration, the mounting hardware runs through rubber isolators at each of these two mounting points. As the suspension cycles, this bar holds the axle in a relatively linear position under the truck with some amount of left and right movement due to triangulation, specifically it will swing towards the drivers side as the axle droops and to the passenger side as it compresses.
Now the question, why would you want to upgrade your track bar to this unit from Synergy? First and foremost, the factory track bar is not adjustable and as you level or lift the front end via a leveling kit or lift kit, the axle does in fact move towards the drivers side, making it offset under the frame. Not only does this look strange, but can cause tire clearance issues once larger tires are fitted under your Ram. Due to the design of the Synergy Track Bar and its integration of their Double Adjuster Sleeve, not only can you adjust the length of the track bar to situate your axle square under your frame, you can do so with both ends still attached, no need to remove one end for adjustment! Secondly, the Synergy Track Bar is built from heavy duty 1.5" diameter, 0.250" wall DOM tubing, which is vastly superior to the factory piece, meaning it will not flex when cycling under the weight of your heavy Cummins engine. And finally, while the stock rubber bushings are soft and lead to movement at the mounting points, further exacerbating the flex issues, and as they wear, will create an actual clunk as the bolt moves inside of the bushing.The Synergy Track Bar utilizes Dual Durometer Bushings with a Teflon bearing surface for a maintenance free design that will withstand miles of heavy use.