Timbren Kit STFL8500 will fit the front of a 2007 M2 106 with vocational leaf springs. Timbren kit FFM2 is used with vocational applications using a right hand snow plow. Timbren kit FFM2A is used on the 2007 M2 106 with air springs or leaf springs, non vocational trucks. Feel free to call us at 1-800-358-4751 if you have any additional questions or need assistance determining the correct Timbren kit for your Freightliner truck.