This is a 1998 Freightliner Century Class I Chassis Cab with a Clough Equipment Co. tank. The Tank has a Date of Manufacture,Original Test Date, and Certification Daate of 03-86, the design and test pressure on the tank is 3 PSIG, the compartment (front to back) is 4800 U.S. Gals, with a maximun product load of 30,000 lbs. the loading limit is 3 PSIG, and the unloading limit is Max 1 PSIG .VAC. The truck has a GVWR-HQ of 23,587 and GVWR-LBS of 52,000. The Tires are 275/80 R22 and the RIMS are 22.5X8.25. The GAWR HGS is 5443 Front, and 9072 Rear. The GAWR-LBS is 12,000 Front and 22,000 Rear. This truck has a M11 Cummins engine, Eaton 10 speed transmission, axle ratio is 279, and a wheel base of 221.