Plans changed and not looking into upgrading any time soon so I am getting rid of these. Unknown mileage. No shaft play. Bought them from a guy in Canada. Never installed the units on my vehicle. Been sitting inside the box since I got them. Ball bearing, great response from what I have read online. Will ship it via USPS priority mail from Alaska, USA. Haven't seen a lot of these for sale so I am guessing they are kind of rare. Not sure how much they run for so I am asking 1700 USD plus shipping. Flexible on price so I am open to offers. No trades though. Pics available upon request.