Is bigger better? You bet! The high-pinion 60 axle is much beefier with additional ribs and gussets designed into the differential housing for added strength. The housing is also designed with a tri-chamber oil system for increased oil flow to its pinion bearings. These bearings are also common, so if there were a problem they can easily be replaced. The bottom radius of the differential housing is also smooth so it will slide over rocks with less of a chance of a hang up.