The ESCO Sheppard M100 Pitman Arm Puller, No. 40311, is designed to safely and easily remove pitman arms from the output shaft on Sheppard M100 gearboxes. It can be used with most Class 6 to Class 8 transportation trucks and equipment and eliminates dangerous hammering and cutting torch methods, the company says. It's made from heavy-duty constructed casted steel and can be used with an impact gun up to 3/4″.