The solution is a differential lock which locks the wheels together when needed. There are two basic kinds of diff locks, automatic and selectable. The automatic diff locks, such as Detroit Lockers, are actually differential unlockers. That's because they are normally locked when the vehicle is traveling straight down the road. When the vehicle turns, the locks disengage to permit the differential to work.
Disadvantages are that they can be noisy and they affect vehicle handling under certain conditions.
In icy or wet conditions the lockers may not sense a turn and thus do not disengage in a turn. This can cause havoc with the handling. Selectable diff locks, such as ARB, operate only when the operator engages them and cease to operate only when the operator disegnages them. Typically, this type of diff locks are operated by compressed air, and are activated by a button on the dash. The compressed air is provided by a compressor that is typically on the firewall under the hood.