I usually stay out of these 8-Lug discussions LOL, but this one made me curious so I had to take a look myself.
According to the suspension pages, the front lower shock mount only had one mounting "ear", or tab. Looks like this was the case from 1980 through to January 1985:
And then from February 1985 and on the lower shock mount had two ears, or two tabs. I assume the shocks stayed the same regardless, and just the bottom mount rotated is all, but I'm no expert when it comes to 8-Lug stuff;).
Oh ok. Good find Cory! I misunderstood.