TRW X-tend Lift Supports from ZF include hood lift and liftgate supports for almost 5.3 million vehicles in operation, including Ford F-150 and Chevy Silverado pickup trucks. The TRW X-Tend Lift Supports feature a black nitride rod with a smooth finish that resists corrosion. They offer a low-wear piston with a durable O-Ring seal with an engineered polymer guide to help separate the chambers of the body for a long service life, as well as anti-spin fittings with a thread lock so they don’t become unseated before installation. Comes with a Limited Lifetime warranty.