I want to put a Model 4 cornpicker on a 77 with hydraulics.  I&#039;m looking for (1) the part that clamps on the frame underneath the tractor that supports one end of the cylinder (2) the part that connects to the other end of the cylinder an fits on the square pivot shaft (3) the slotted tube that fits in the holes in the tractor frame and supports the square pivot shaft and (4) the bushings that support the square pivot shaft inside the slotted tube.  I can provide pictures from the parts book if needed.  Thanks.