Steven, I played with this too. I got a local welding shop to cut a piece of aluminium and put a bend in it so it goes up on the inside of the tunnel, the back out flush with the tunnel (that makes sense right?). Any way, I started with the suspension bolted like 3 inches down from the tunnel. Dont do that... It lifts the front end of the track off the ground and you loose all traction. Maybe there is a way to remedy that im not sure. Anyway, I ended up putting it so the top of the track at the rear idler is flush with the bottom of the tunnel. Bolted about an inch below the tunnel. Works great for me. I'll try to get some pics on someday.