GMC 40-foot “New-Look”

  • Specifications:
  • Length: 40 feet
  • Width: 96, 102
  • Height: 121 inches
  • Wheelbase: 285 inches
  • Turn radius: 42 feet
  • Typical engine: DDA 6V-71, DDA 8V-71
  • Seating: 49-53
  • Luggage: None
  • Aisle Width: 20, 26 inches
  • Front door width: 30 inches

Production History

Production history
Year Model Qty
1959-1963 TDH-5301, -5302;
TDM-5301, -5302
1963-1967 TDH-5303, -5304;
TDM-5303, -5304
1968-1971 T6H-5305, -5305A;
T6H-5306, -5306A
T6M-5305A, -5306, 5306A
T8H-5305, -5305A;
T8H-5306, -5306A
1972-1977 T6H-5307N, -5307A;
T6H-5308N, 5308A
T8H-5307N, -5307A;
T8H-5308N, -5308A
T6H-5309A, -5310A
Total 22,034

1. Narrow units, TDH/M-5302, TDH/M-5304, T6H/T8H-5306, -5306A, T6H/T8H-5308, -5308A, totaled 5,437
2. Mechanical transmissions, TDM-5301, -5302, -5303, -5304; T6M-5305A, -5306, -5306A, T8H-5307A, -5308A, totaled 324. (These T8H series buses had mechanical transmissions in spite of the “H” designation.)

Model designations indicated nominal capacity (53) with the even-numbered models (-5302, etc.) being 96-inches wide. Most notes in the section on 35-foot new-looks apply to the 40-foot new-looks.

Starting in 1968, the Detroit Diesel 8V-71 engine, relected by “8” in the model number, and VS transmission with overdrive were offered as options for high-speed expressway operation.

Although production of the new-look in the U.S. was discontinued in 1977, GM of Canada continued to produce them at their Ontario plant, changing the letters in the trapezoidal nameplate under the windshield from “GMC” to “GM.”

Information from the Bus World Encyclopedia of Buses – 1988


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