The wing support block at the top of the jack is made from two-inch thick stock. We a cut hole about an inch deep for recessing the top of the jack. High density foam serves as a pad and adds a little more adjustment. We attached the foam to the wood block so that we don't have to worry about it slipping.

In this photo, you can see the mounting screws in the base of the jack.

2/22/2018   Picture 186