I'm going to have to disagree.
It's NOT a civy Blazer with upgrades like the tow package and snow plow addition.
The front hubs alone are nothing like the civilian model. Take yours apart. Once you get to the locking key and keyway that holds the hub to the spindle, get back with me. I've had NUMEROUS hubs apart over the years. THEY just have spindle nuts.
So, there is a lot more to this truck than you might think. The engine alone is completely different spec'd than the civilian model...