It may have a "Brownie box" mounted aft of the transmission to give it a high/low option. I don't think there was ever a 2-speed rear-end offered in a ¾-ton.


"It's just a phase. He'll grow out of it." Mama, 1964

1956 Chevy 1/2-ton 3100
1953 Chevy 6100 "The Yard dog"
1954 GMC Suburban Now with a new proud owner.