First there was no solution for failing front hubs on 1990 to 2005 Miatas other than installing new parts often. Now the aftermarket has a number of solutions, the latest of which is Wilwood’s forged aluminum racing ProHub, a lightweight and fully user-serviceable option, with measurably increased strength and durability over aftermarket OE-type steel replacement hubs.
The innovative ProHub design eliminates the one-piece sealed ball hub bearing design, providing a direct bolt-on option that accommodates any brake package configured for the stock spindle and hub. A uniquely designed spindle collar and lock-nut system incorporates separate and wider spaced inner and outer tapered roller bearings for added hub support and increased load carrying capacity. Regular bearing lubrication and maintenance is simplified, while providing fully manual and infinite adjustment to the bearing preload. $700 each.