john deere with rear pto and 3pt hitch sold john deere 420 60 garden compact tractor x700 signature series tractors lawn 540 rpm rear pto for x700 signature rear pto attachments ih cub cadet sears ff 20 garden tractor front pto bush hog talking tractors gravely 45965 rear pto 4 wheel tractor sears ff 18 lawn garden tractor front simplicity legacy xl 33 4wd w 540 gt 18hp kohler hydro parts diagram