[PGSigns]

The track bar was designed to fit at the stock height. As you lower the truck the bar swings through an arc and the length changes with the new ride height. You can put an adjustable bar in it at the stock location or go to a longer bar that goes from the stock frame mount to the trailing arm on the opposite side. I prefer the longer bar. It moves the rear over less as the suspension travels and also lowers the roll center improving the handling a bit. Here is a link to a good longer adjustable bar. https://www.earlyclassic.com/node/1166 If you will post pictures of your setup we can help with what you have and ways to proceed to get you where you want to go with the trick.
Jimmy