Aftermarket modifiers have obtained supplemental type certificates (STC) allowing conversion to an aluminum covering.

[8] One distinctive feature is the partial leading edge slot installed on the wings and aligned with the ailerons on the trailing edge, ensuring that the portion of the wing containing the aileron remains unstalled at higher angles of attack, thus contributing to docile stall behavior.

[citation needed] The 108 initially proved popular, with 746 examples built in 1946, while production in 1947 was almost half of all 4-seat private aircraft built in the United States, with the Stinson division the only part of Convair that was profitable for a time.

[9] In 1948, however, overproduction in the US general aviation industry led to a glut of light aircraft, with unsold 108s being stored, and on 30 June 1948, Convair shut down the Stinson factory.

[citation needed] The 108 variants closely resemble each other but can be visually distinguished by their design changes: Data from Plane and Pilot,[17] Jane's all the World's Aircraft 1947,[11] Stinson Operating Manual.