DESCRIPTION 1999 Peterbilt 385 Truck (DR12076 Unit 906), Cat diesel engine, 10 speed transmission, tandem axle full screw, air ride suspension, 185'' WB, day cab, 5th wheel plate, engine brake, cab heat/air conditioning, 22.5 tires, all aluminum wheels. Serial Number: 1XPGDU9X2XD460482 Notes: