These frames are very popular for swapping under older GM trucks because they are widely available, relatively inexpensive, and offer a number of advantages over the original frames. Squarebody frames are stronger and more rigid than the original frames, and they also have a wider track width and a longer wheelbase, which can improve handling and stability. Additionally, squarebody frames have a number of mounting points for accessories and equipment, making it easier to add features like power steering and air conditioning.
