I recently took the front axle off the 446 to repair the pivot pin, built the pin up with weld and ground it to proper size.Reinstalled the axle and there was still some movement sideways, so I took black nylon and cut two pieces to fit into the back side of the axle web,one each side of the pivot point. The movement back and forth now is so minimal and the ease of steering has improved greatly. The nylon blocks are flush with the frame and are hardly noticeable. With a grease job to the front end it works just great. How long the nylon blocks last before they need to be replaced ,time will tell. Oldfrank.