The majority of the GM 14-bolt axles have a full-float design. The advantage of a full-float axle is that it removes the load from the axleshafts and transfers it to the hub. This full-float design not only allows for a stronger axleshaft, but an increase in the load carrying capacity over a semi-float axle. The full-float 14-bolt weighs around 500 pounds and is fitted with an 8-on-6 1/2 -inch wheel bolt pattern. The axles Gross Weight Rating can range from 5,500 to 8,600 pounds.