As title stated I just installed the trackbar, brand new. It uses an enduro joint. This thing will not take any grease. There is pressure on the gun, as in the handle is very tight when pushing out grease. It just keeps squeezing out between the tip of gun and zerk. The gun is working fine for every other zerk fitting on the vechile. Any ideas?

Whenever I grease the front end of my '00 I don't crawl under there without one of my picks.
Just to make sure the ball is free in the zerk fitting before I do it.
Thinking do the same and see what is what.

Loosen the zerk fitting some and try again, if it works, then the zerk is bottoming out, which is not good.

or try another zerk fitting in there

Tried another zerk fitting and I actually blew the gun hose there was so much pressure

Just got off the phone with Andy. Great dude. Again I always recommend his stuff. He said enduro joints are under a ton of pressure and the poly seal will not let the grease go in. Atleast from my understanding that's what I got from it. I'm no expert in joints Haha. But he said to use a tiny drill bit to puncture it and 1 pump of grease. I'll try tomorrow and see what happens.