I recently purchased a 1975 ford 3500 diesel tractor witht he front end loader and backhoe attachments! The seller told me the backhoe can be removed by undoing the large threaded rods in back holding the backhe down (and of course undoing hydraulic lines) however every time I try to do it as soon as it lifts off the tractor it starts to tip over???? Also when using the backhoe once it has been used for awhile it wont rotate back to center behind the tractor! I assume one of the 2 round cylinders located at back of tractor below loader is probably bypassing! Any help on either of these issues would be appreciated!