GMC Repair: rear axle, mid sixties, wheels and tires

Question
i have a 1993 2500 gmc and the rear axle is 5 inches narrower thatn the front assembly is this normal and can I change it

Answer
you can change it. to just about anything you want. Just about any truck, for GM and all the infinite wisdom did this for over twenty years. If you take just about any GM truck from the mid sixties to current...

install the same wheels and tires and the front will appear to protrude farther than the rear.