A buddy of mine got all the Trail Gear stuff......a week later he had all PSC stuff. In short the Trail Gear full hydro is the biggest pile of crap I've ever seen. The first thing I noticed was that the steering valve had not one marking on it to show the brand or anything. Some of the things it did(or didn't do) was when you turn the axle to full lock the steering wheel would keep on spinning.
Then if you had it at full lock and stomped on the gas the tires would straighten out. He got some vid. of all that I'll try to get it up later. On top of that when he called Trail Gear to see what the deal was they said it was supposed to do that.
Needless to say all that crap got boxed back up and sent it back and a PSC kit was on a week later and it works flawlessly. I have the same PSC kit on mine and I couldn't be happier. IMO steer clear of TG. Chinese junk!