It saw combat in the Korean War and remained part of the U.S. military until being replaced in the late 1950s.

The M37 HMC was an open topped vehicle using torsion bar suspension with tracks 16 in (41cm) wide.

[1] The M37's thin armor (0.5 in or 1.27 cm) could provide protection from small arms fire and artillery splash, but nothing greater.

[1] Its "pulpit" machine gun, like that of the M7 Priest, could be used for anti-aircraft purposes, and its 105 mm Howitzer M4 was able to turn a total of 51.7 degrees.

[3] Though its basis, the M24 Chaffee, was fast, the M37 was much more sluggish due to the amount of ammunition it carried (126 rounds), its recoil system, and the weight of the 105 mm howitzer M4.