Numbers Builder Built Model 1521-1568 GM 1975 T6H-5307A 1801-1878 GM 1978 TH-8203 7901-7936 GM 1979 T8H-203 7951-7959 GM 1979 T7W-203 8001-8050 GM 1980 T8H-203 8201-8215 GM 1982 T8J-204 8401-8416 Flxible 1984 40102-6TRoster does not include buses purchase by private predecessor companies, or purchased by SEMTA for use by the private companies.