PETERBILT 579 UP2GAMING SKIN MOD American Truck Simulator Mods | 22 Mar, 2016 Skin Up2Gaming For Peterbilt 579 Truck For All Cab Tested 1.2 Game Version Author: Xtry_online Tags: PETERBILTHaving trouble with the mod? Check the comments for a solution and report any new bugs you find.