#864-899 were delivered to Calgary in 1977. They were the first buses to be delivered to Calgary Transit with the Allison V-730 transmission. They still have the Detroit Diesel 6V71N engine like all of Calgary's T6H-5307N's. When delivered, the buses had roller signs, but all were eventually changed to digital destination signs. These buses also had steel bumpers when delivered. Some did have Firestone bumpers on the front, while all others had Transorb bumpers refitted.

 

Units 864-870

Units 871-880

Units 881-890

Units 891-899