well this ones not an m35 but it keeps good company. this 5 ton still has the old 855 cube cummins in it & had a perfect cab. once armor is installed the weight beats these trucks to death. also the kids driving these trucks tell me they hate the upgraded ones with the little 8.3 turbo cummins - they will not pull hills like the old 855 engines. also if any one needs to replace an old 855 250 hp cummins look for a " super 250 ", they where 936 cubes if i remember right & where good pulling engines.