truck leaning down on front driver side

The dealer ( Wynn Ford in Hampton, Va) found the spacer for the front and this one for the rear. He is going to install them when they get in. Also going to install two new shocks and coil springs. I have had this truck since new and it has never been abused or hauled a heavy load. I am puzzled that Ford knows about this problem and has never beefed up the front end on the diesel trucks. A lot of weight from the engine. I have replaced a lot of parts relating to the engine on this truck. I bulletproofed the EGR and oil cooler. New twin turbo due to slow pickup off the line. I have a filter system for the cooling system that I haven't installed yet.