I had my box rebuilt with by Lee the first time around. I liked the idea of keeping my original box. I didn't have to worry about adapters. When I got the car running I hated the feel even thought it had the quick ratio. I could turn the wheel with my pinky. Came to find out that the torsion bar is really what gives the feed back or resistance to turning. I sent the box to AGR the sencond time. I talked with them about it and he took a bunch of info on the size of the wheel, tire size, weight of car and such. I had a AGR pump that wasn't working so I sent it all to them to get worked out. I set mine up a bit on the heavy side but I'm happy with it.