I dont believe you can buy it, there are aftermarket bolt on replacements but not like the factory unit you have, you can drill the two spot welds to break it apart, replace the bush and with care re weld the hoop back onto the base. I converted my factory unit to use the chassis bracket, welded a 1/4 plate to the front of it, drilled and tapped two 3/8 holes, screwed studs into them, welded them in place from the back then bolted the aftermarket hoop with Urethane bush onto the chassis bracket, works great. No additional holes in the chassis rail
