67-72 C/K/T-40's-90's!

[ClassicTVMan1981X]

Originally Posted by Bob B.

You got me. The 6V-53 was available in the Brigadier 7500's up until about 1984 or so, but the vast majority I remember seeing were Cat 3208 powered. I don't have anything on transmission availability for the 6V-53. You need to find a Data Book from the early 80's, it would say.

This 1979 Chevy Bruin HV70 fire truck has the 6V-53T (turbo) backed with an Allison MT-654CR 5-speed close-ratio automatic (with a shorter fourth); both it and the MT-644 actually had the same torque converters as the HT-700 and V-730 series so they were mostly used behind heavier-duty diesels like the Detroit 6-71 and 6V-92TA rather than the mid-range 6V-53, but the MT-654CR was the only five-speed MT that didn't have the deep low gear.
https://www.youtube.com/watch?v=-L_2eejjlKg

~Ben