The axle retaining bolt that retains the floating axle to the hub failed and resulted in the floating axle splines at the hub failing. This is a known issue (see Ford Customer Satisfaction Program 22B34) but the recall only applies to vehicles manufactured from May 1st, 2021 to September 30th, 2021. My vehicle had the exact failure described by the recall (including the tell-tale ticking sound before failure). However, the build date for my vehicle is March 17th, 2021. Clearly the recall should be on trucks earlier than the May 1 date. The truck was built at the Dearborn Plant. I am assuming the other axle suffers from the same issue and will also fail.