My Suburban of choice is a 95 2500 Heavy Duty Big Block four wheel drive. As most know, this rig is a rather stout one when looking at the Dana rearend. It appears there is no sway bar on the rear and my tire man commented that on this configuration of Suburban, the rear axle is 1 inch narrower on each side compared to the front track size. Can anyone explain this as to why Chevrolet went with this size configuration and why there is no sway bar? Thanks----Pete