Terex Corporation is recalling certain model year 2013 Terex Advance FD3000, FD4000, FD4000B, FD5000GL, FD6000B, FDB5000, 4 Axle Glider, 5 Axle Glider, 6 Axle Glider, and 7 Axle Glider front discharge concrete trucks manufactured October 2012 through October 2013. The u-bolt that attaches the front axle to the leaf spring can fracture.