I just bought a 97 Ram 1500 and was wondering if they could be equipped stock with locking front and rear differentials, not just lsd's. I blocked the tires, relesed the parking break, jacked up the drivers side rear wheel and proceeded to try and turn it with my hand and nothing happened, it didnt move but I want to be sure. Any information or help is appreciated.

EDIT: Never mind I already posted this in the 2nd gen forum my mistake.