Pack adds in traffic classic american trucks and trailers: -Peterbilt 359 -Peterbilt 362 -Peterbilt 289 -Peterbilt 350 -Ford LTL9000 -Chevrolet Bison -Freightliner FLA -Freightliner FLD120 -International 9370 -Autocar AT -Diamond Reo Royale -Mack Ultraliner -Mack R-series -Ford CLT9000 -Lubbock Tanker ’70 -Moving Van ’70 -Fruehauf Flatbed ’69 -Fruehauf Dry Van ’51 -Timpte Super Seal -Fruehauf Tanker -Fruehauf FB9 F2 ’75 -Fruehauf Reefer ’71 All standalone. Cables simulation. Works on any maps. Compatible with AI packs by Jazzycat. For version 1.48.x Version 3.9.1 – update for patch 1.48