Please add [DT] to Chassis code
http://imcdb.org/vehicle.php?id=1648760
http://imcdb.org/vehicle.php?id=1716452 - Also Crew Cab
http://imcdb.org/vehicle.php?id=1587957
http://imcdb.org/vehicle.php?id=1309864 - Also Regular Cab
http://imcdb.org/vehicle.php?id=1631995
http://imcdb.org/vehicle.php?id=1541469 - Also name change to Heavy Duty 2500 Crew Cab