A steerable rear assembly is disclosed for a lowboy trailer. The assembly includes a lowboy trailer deck and a neck extending partially upwardly rearward and partially horizontally rearward from the deck. A front bogey is positioned beneath the horizontally extending portion of the neck, and the front bogey is connected to the neck by a horizontal pivot between the neck and the front bogey and by a turntable between the neck and the front bogey. A rear bogey is positioned behind the front bogey and is connected to the front bogey by a vertical pivot between the front and rear bogeys.