Sierra or Sierra Grande?

[Roadkillerv8]

Hey fellas, got a '72 that is currently in the shop right nor and a thought crossed my mind. I took the glovebox out to fix a water leak (rust windhield channel which is getting fixed right now) and it says Sierra Grande Equip but that badges on the side of the truck are Sierra... The vins all match i believe. The truck not being with me i cant look to see if she still hass the roset rivits, but im curious if the truck might not have came with absolutly everything to make it a Grande or did it come as one and someone made it a Sierra? It has every bit of fancy trim besides the upper chrome on the exterior.

Thanks!