These are then placed inside a half seated tire and bolted together. The other tire bead is then forced over. It provides bead retension for the inner bead only. These are an off-road tire with deep lugs suitable for mud, snow, etc. Fording The geared hubs, winch, differentials, transmission, and transfer case are all sealed.
Diesels also have a sealed starter.
They are able to operate in 30 inches of water, mud, whatever, continuously. There is no possibility of contamination. They can operate in 60 inches of water. A arms, coil springs over hydraulic shocks. The suspension members are symmetrical front and rear, e.g. the lower right rear is the same as the lower left front.