-- Specifications & Features -- Year: 2006. Make: GMC. Model: 3500. Engine: 6.6 liter Duramax. Meter Reads: 186,266. Transmission: automatic. Wet Kit: no. Front Tire Size: 215/85R16. Rear Tire Size: 215/85R16. Suspension: spring. Dump Body Size: 7'4"×8'. Pintle Hitch: no. Air Ride Cab: no. -- Seller Statement -- Runs and operates good