Tripod style joints are used for the inner joints on most Asian FWD models from 1983 till now. This type of joint is well-suited to the limited operating angles of the inner joint location. The joint is designed to plunge in and out the same as other inboard joints to allow changes in shaft length as the suspension moves. The tripod inner groove is made of cool forging part, which ensures the complete inner structure of the roughcast, so as to ensure a longer life. It is also chemically treated to prevent corrosion and enable easier installation and dismantling.