Description: Detroit 4-53 upper w3700 hrs, 6-71 lower w/3400 hrs, both have rblt alternators & radiators. 100' main boom, 50' jib, block & ball, Machine newly painted, new hoses,belts,hyd.lines. New boom line. New air cans on lower. All boom sections inspected and painted. Has current certification. All manuals & service records available