heavy duty specs,great running ,truck was driven weekly until taken out of service in September (replaced with new truck), well fleet maintained,oil changed every 12-15,000,maintain records since 2007,purchased from Ryder,525 horsepower red top Cummins,Rockwell rearend 3:73 ratio,rear tires are 50 % recap tires,just had new belts and hub fan replaced,rebuilt steering box,front end tight,new starter,newer clutch and u joints,newer radiator,oil leaks repaired,brakes 50 % or better,newer front springs,newer transmission,, some engine work has been done in the last 100,000,engine has not had a major overhaul,as of now it does not need one good oil presure,does not burn oil,,runs great,would make a good glider,rearend housings have scaling rust,truck is in good shape and has plenty of life left,sold as is no warranty,