5. When most of us think of hubs, we don't necessarily think of some masterpiece of metal. That is until you hold a pair of cast-aluminum Ouverson Engineering hubs for the factory 16-spline 21/2-ton shafts. Each hub kit requires absolutely no assembly and bolts directly onto the steering axle. Having a selectable hub will keep the wear and tear of the drivetrain down and should make handling this monster on the highway a bit easier.