Shop used Peterbilt 320 Truck Bodies / Boxes / Beds on MyLittleSalesman.com . Compare active listings with prices from $500 to $5,250. Sellers include Garabedian Equipment, CA Truck Parts, and Camerota Truck Parts. Filter by GVWR, number of axles, transmission, mileage, and more to find the Peterbilt 320 Truck Body that fits your job.