I've found an inherent weakness in the 2nd gen track bar design ( duh, eh?) 
I thought my DT track bar needed rebuilding. I was getting a "clunk" changing steering directions and a "hitch" when passing over center while driving.
The problem is not my DT track bar, it's the track bar mounts on the truck. The bracket holes where the bolts pass through have enlarged themselves. There is 3/16" play in the passenger side mount holes and 1/16" to 1/8" on the driver side mount. You can see the movement if you have some one turn the wheel back and forth while you look from underneath. Do it with the motor running.
The fix for me is going to be welding reinforcements to the mounting plates. DT being a chassis fabricator, the shop just happens to have some. Oo.
They are 4130 steel weld on reinforcements. I'd post a picture, but they only show them in the downloadable file here -
http://www.dtprofab.com/tabzone/
There is cool stuff in the file you can buy from DT other than the reinforcements
So, you may want to check your truck by pulling the track bar from one end, and checking the play on the other end with the bolts slightly loose.

I thought my DT track bar needed rebuilding. I was getting a "clunk" changing steering directions and a "hitch" when passing over center while driving.
The problem is not my DT track bar, it's the track bar mounts on the truck. The bracket holes where the bolts pass through have enlarged themselves. There is 3/16" play in the passenger side mount holes and 1/16" to 1/8" on the driver side mount. You can see the movement if you have some one turn the wheel back and forth while you look from underneath. Do it with the motor running.
The fix for me is going to be welding reinforcements to the mounting plates. DT being a chassis fabricator, the shop just happens to have some. Oo.
They are 4130 steel weld on reinforcements. I'd post a picture, but they only show them in the downloadable file here -
http://www.dtprofab.com/tabzone/
There is cool stuff in the file you can buy from DT other than the reinforcements

So, you may want to check your truck by pulling the track bar from one end, and checking the play on the other end with the bolts slightly loose.