The drive shafts used on Cooper S models were a stronger steel than used on other Mini models. Now we can offer a pair of uprated shafts in superior material and special heat treatment designed to prevent the splines from twising. These are suited for road or race applications in all Minis with yoke or flange axles. These are machined to include the standard circlip grooves. Sold in pairs only. For racers who want the absolute strongest option, see FOR124 shafts, which have no CV joint stop ring groove.