Provides support for holding your liftgate in its open position GM Genuine suspension parts match the GM vehicles original equipment in ride, handling and stopping distance GM Genuine suspension components are specifically designed and engineered to work together with the GM vehicle ABS braking and stability systems Go through hundreds of validation / durability tests that include mechanical, climatic, material, enclosure and electrical testing Tested to rigorous GM standards for, durability, performance, temperature cycling, corrosion and fatigue Aggressive environmental wear testing includes heavy loads, water, salt, bumpy and dirty roads Tested extensively in GM vehicle applications to specific engineering requirements Some GM Genuine Parts may have formerly appeared as ACDelco GM Original Equipment (OE) GM Genuine Parts are designed, engineered and tested to rigorous standards, and are backed by General Motors GM Engineers design and validate OE parts specifically for your Chevrolet, Buick, GMC, or Cadillac vehicle