i get spend my days as an army HET mechanic (M1070/M100 heavy equipment transporter), my trucks are the replacement for those M911's but let me tell you, the M911's where the chit, i was in ft Knox back in july for a training exercise and had the pleasure of driving a few bobtailed M1070's on roadtest's thru the hills of ft knox. bobtailed the rigs dont do too bad but throw a fully loaded M1 and M1000 behind it and that detroit just starts hurting, while i've seen the M911 actually pass two or three civilian heavy haul peterbilts but one of the steepest hills in ft knox and they all had the same load....fully mission ready M1's