Wilwood 831-15890 Wilwood Spindle Kit Pair 64-74 GM AFX body 2.00in DropWilwood 831 15890 Wilwood Spindle Kit Pair 64 74 GM AFX body 2. 00in Drop Wilwoods AFX ProSpindle Kits contain a pair of high strength steel spindles for 1964 1972 GM A Body, 1967 1969 GM F Body, 1968 1974 GM X Body vehicles that use the original bolt on steering arms. Specifically designed for use with Wilwoods disc brake kits, with a 2. 00 drop for a more aggressive stance without affecting steering geometry. With the added benefits of providing a