Dart / Rimpull have been a world leader in durable mechanical-drive rear dump trucks since the 1920's. Hundreds of our 100 ton rear dump model 2771 were delivered starting in 1965. This series was upgraded to the Model 3100 series with a rigid box chassis design. Hundreds more were built and are still in service around the world in a wide range of mining applications the rugged box frame and drive train components have logged literally millions of successful operating hours. Once again upgraded in 2012 to the 3100B is the continuing evolution of this highly successful lineage. In 2013 Dart / Rimpull added the Model 3120B that has an upgraded drivetrain and dump body to accommodate up to 120 tons of payload. Our Model 2085C tandem rear drive axle 85 ton unit has also been a world leader in the 85 ton payload class.