We manufacture the stake pockets but they are not on the online catalog. Call our sales office or email if you want to order.
There is a difference between the stake pocket on a 69 and a 55 bed. The 69 will have extra holes for the 69 style tail light bracket. When you compare them closely, you can see they were probably made on different tooling but they will interchange. If you are putting the 69 stake pocket on a 55, it probably won't matter if you don't mind the extra holes, but if you are putting a 55 pocket on a 69, you will need the holes for mounting the stock tail light bracket.
Mar-Ktech