I'm with Scott B, GM hasn't made a real 4wd since the 1980's (or a quality product for that matter)... Now they just pollute the roads with total junk.
If that's the case, then I was lucky to have driven them before that time. In all kinds of weather, mud, sand, even snow and ice one winter! I remember the driving experience about them. The motor sounds, the feel of the clutch and shifter, the ride on the backroads. How dumb I was to not ask for one of the trucks after Dad retired his business... Sometimes, I have strange dreams about seeing the truck just slip out of my grasp forever, and I wake up grumpy, asking myself why I didn't take it. Because of the options Dad chose for his trucks, I always associated automatics and rear-end drives with Fords and the real-deal four wheel drives with manuals with either Chevrolets or GMCs.
Maybe we ought not to be hard on the owner, as a "proper" grille was not in stock and he had to "do something" to protect the integrity of his front end's ability to protect the radiator from rocky "disasters" until he got home.