kenworth t600. Lots of upgrades have paperwork on everything I done to it. To start new sleeper painted virgin rubber steers and drives the rear drive was rebuilt the front rear drive whole front drive axle. New clutch less than eight months ago 13 speed, rods and mains the Jake"s were rebuilt overhead ran new air compressor new kingpins oil change every 30 days just had a oil analysis done on it checks out good I can go on with more like I said I have paperwork on everything I"ve done.