Suspa C16-19567 C1619567" Gas Prop, Quantity (2), Force is 45 Lbs per prop and Force per set is 90 Lbs,&nbsp; Suspa recommends to replace both struts at the same time, Camper Rear Window, Tonneau Cover Lift Supports, Window Lift Support, Struts Compressed Length (Center-to-Center): 10.2in (259mm) Extended Length (Center-to-Center): 16.5in (419mm) Force: 45 Lbs (200 N) (Per Prop) End Fittings: 10mm Nylon Ball Sockets Set of Two