For the ultimate in performance rod ends, look no further than QA1's XF Chromoly Steel Series female rod ends. These heavy duty rod ends are commonly used on 4-link and ladder bars for their strength and durability. XF Series rod ends are completely self-sealing and self-lubricating because of their PTFE injection formed that keeps dirt and debris out. The ball is made of 52100 bearing steel that has been heat treated, hard chrome plated and precision ground. The PTFE is self-lubricating and self-sealing, and the body is made from heat treated chromoly steel that has a protective coating for corrosion resistance. EXCLUSIVE FEATURES: Metal to metal support for heavy shock loads and increased cross-sectional thickness for greater tensile strength.