His business, M. D. Moody, became the oldest family owned construction equipment distributor in the United States and at one point the largest crane dealer in the southeast.

[2] Moody also founded the American Road Builders' Association and was known as the "oldest construction machinery man in Florida.

[7][8] On April 14, 1909 Max married Ethel Muller, who was born in Germany, at the Church of the Immaculate Conception.

In 1915 Moody decided to give up his career in the drug business in favor of the road building industry.

[12] On June 10, 1920 Maxey joined the Ancient Arabic Order of the Nobles of the Mystic Shrine and Scottish Rite at the Morocco Temple in Jacksonville.

During World War II the business supplied construction equipment needed for the expansion of military bases in Florida.

However, his son Maxey Dell Moody Jr. took over his father's business in 1949 upon his death in the same year of a heart attack.

[13] By the 1980s M. D. Moody under his son grew substantially to become one of the largest construction equipment distributors in the Southeastern United States.