I had the same problem when I first lifted to about 4", tried a few joints, but none lasted more than a week. I ended up ditching the TRE style bar, and got a Rusty's HD TB with the brace. After reading horror stories about them, I decided to just build my own.
jdxj said:
Why not?
It's because of the limited movement a TRE allows. Also at that lift height, like you are discovering, there are vertical forces being applied to a joint that's really only designed for horizontal forces. The greater the angle between the mounting points, the worse this gets. Hope that makes sense.
You should be running a trackbar that has eye bushings at both ends, and uses a different mounting bracket.
Here is an example using a pic of my setup. I built my own using the stock mount, and added a frame brace, but many of this style are available from reputable companies.
Please ignore the stupid torx bolt, it was used for setup purposes. Also, my steering angles are off a hair in this pic because I built the mount to use with a drop pitman arm that I hadn't installed yet.
