Jay McCormick “Mack” Sheesley's Truck Museum

March 27, 2019

For decades I’ve been among the many motorists driving by the semi trucking school, located at the I-10 and I-17 intersection, known to locals as “The Stack.” When Arizona Contractor & Community decided to do another special issue on trucking, I took the exit ramp and explored the school.


On the grounds, I first noticed a 1954 “needle nose” Kenworth, before an employee directed me to where I would find Jay McCormick “Mack” Sheesley, the owner of a fleet of vintage semis. Soon I was greeted by Mack and Miss Liberty, his Australian blue heeler.


Mack grew up in Chicago where he learned mechanics working in various shops. “I’ve always been sort of a roamer and, after living in various Eastern states, I enlisted in the Air Force,” he says. “After a year of training, I became a Radar Maintenance Technician in California.”


In 1964, Mack, along with some friends, moved to Arizona. He worked for a short time at Ralph’s Diesel Service, located where the CDL Trucking School is today. Mack later moved to Cummins Diesel as a warranty adjuster.


To read the rest of this article, you are invited to purchase the digital issue here. 

This article originally appeared in the Arizona Contractor & Community magazine, Mar/Apr 2019 issue, Vol. 8, No.2. The Arizona Contractor & Community magazine is a bi-monthly publication.

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Arizona Contractor & Community magazine has become a vital forum for the state’s building industry by providing critical information and exposure to companies in the field. Moreover, the publication has expanded beyond traditional construction, architecture, and real estate topics and has found an audience with those who have fresh ideas on adaptive reuse of historic buildings or making new developments more community-friendly and sustainable.

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