The tail gearbox, mounted at the top of the tail pylon, supports and drives the rotary rudder. Upgrade your aircraft NOW with Landing Gear Works TITANIUM products! The Landing Gear Works Company specializes in the manufacturing of titanium landing gear legs for Cessna 180 and 185 as well as tail gear springs, and tailwheel assemblies for various Cessna aircraft. Lubrication is. Aircraft tail assemblies are vital to maintaining stability and control during flight, ensuring safety and performance. The gearbox is splashlubricated.