Allis-Chalmers DD grader of the 1950s. In the 1940s, Allis-Chalmers launched a new grader called the model 'D' to replace the former model 'W' tractor-mounted type at the lower end of its motor-grader ...
The 17,000-lb. 705 features joystick control of grader functions integral to the operator's chair. The 29,777-lb. 845 DHP (dual horsepower), 32,077-lb. 865 VHP (variable horsepower) and 37,950-lb. 885 ...