I just bought a Extreme duty 72" cutter for a skid steer. It has 3 blades and they are sandwiched between 2- 3/8" (blade carrier) plates. The bolts that hold the blades on are welded to the bottom blade carrier. You have to use a cut off tool and cut the weld off to get the bolts out. The blades are designed to cut in either direction. But the Radial Piston hydraulic motor will not reverse. Any body here have one of these?