The Calbrandt Low Dog Indexer/Railcar Mover is available in five different versions, featuring either chain or cylinder drives, and can be installed on concrete or ties. Among these versions the movement can be ratcheting, indexing, or continuous. The dog carriages hit low on the bogie frame of the car, and can be built for forward movement, forward with manual reverse, or automatic reverse. Calbrandt Low Dog Chain Driven Indexer/Railcar Mover Check out www.calbrandt.com to l