This model from Andrew Sabens is a modfied Herpa Mack CH603 that started as an extended frame with a sleeper bunk. The sleeper section was removed and a third rear axle added. The crome wheels are from a Herpa tri-axle trailer and the front wheels are from the parts bin. The lowboy is a custom painted and weathered GHQ model. The dozer is the First Gear International Harvester TD-25 with ripper.