Very inexpensive OEM front hub replacement on my 2008 Ford Explorer at around 110,000. Ships within days of ordering, direct from Detroit Axle. Although the hubs are bolted, removing the original hubs required removing the entire knuckle and using a press due to rust on the mating surfaces. Widespread use of lubricants in the contact area of the new steering knuckle can prevent future replacement, which could then be done without dismantling the steering knuckle. I will definitely buy a Detroit Axle again.