ALLIANCE SS Quarter Extension  CHVP CHROME Quarter Extension
   FREIGHTLINER Quarter Extension  FREIGHTLINER CASCADIA Quarter Extension
   FREIGHTLINER FL Cabover Quarter Extension  FREIGHTLINER FL70 Quarter Extension
   FREIGHTLINER FLC Quarter Extension  FREIGHTLINER POLY Quarter Extension
   GMC WG Quarter Extension  INTERNATIONAL 8600 Quarter Extension
   INTERNATIONAL LT625 Quarter Extension  INTERNATIONAL Prostar Quarter Extension
   KENWORTH T680 Quarter Extension  PETERBILT 579 Quarter Extension
   STERLING Quarter Extension  UNITED PACIFIC Quarter Extension
   UNITED PACIFIC POLY Quarter Extension