this is a 1989 Mack Superliner RW713, E6-350hp, 15 speed Fuller, 12 000pds front axle, 38 000pds mack rears with neway air ride. single frame with original lenght. mid rise bunk. good running truck, 11r24,5 tire on bud. don"t need much to get back on the road. good condition. four5zero-803-7211