Since massive meats such as 38-1/2-inch Mickey Thompson Baja Claws on Weld 16-1/2-inch Scorpio wheels make for massive stress on steering components, a Tommy Lee hydraulic ram pushes and pulls the tie rod from its mount on the axlehousing. The combination of stock-style steering augmented with hydro-assist is an important demarcation between safe, street-legal rigs and those that should never be driven on public roads. On the other side of the line drawn in the sand are trucks that use fully hydraulic steering systems. Fully hydraulic systems rely on hydraulic fluid and high-pressure hoses to link steering-wheel input to an axle-mounted hydraulic ram. The high-pressure hoses bear 100 percent of the steering burden. Should a hose fail, the vehicle will be left without steering and will inevitably crash. Street-driven off-road trucks need a physical drag link. Full-hydraulic systems are best left to stadium-driven Monster Trucks, rock buggies, and show-only trailer queens.