No, although you could. I actually just ran a bead down the backside of that flange to weld it to the K. The '73 up K's actually have flat reinforcements there instead of the ones with the tabs.
Also, I didn't add the reinforcement washers to the fronts of the strut rod mounts. I use adjustable strut rods, and they all use a large metal spacer instead of the typical bushing and washer set up. With the added diameter and thickness of the metal spacer, the extra reinforcing is just extra. If you're going to use a stock strut rod and bushing set up, I'd reinforce it though. But keep in mind that extra thickness may effect the length of the strut rod.
