Description
This Technical Manual Change 3 for TM 9-325 covers updates to the original TM 9-325 manual for the 105mm Howitzer M2A1, 105mm Howitzer Carriages M2A1 and M2A2, and Combat Vehicle Mounts M4 and M4A1. Issued in March 1961, this change notice updates the original TM 9-325 manual issued May 7, 1948, making it a strong Cold War-era publication for collectors of U.S. Army technical manuals, artillery references, ordnance publications, and dated government manual updates.
As a Change 3 update, this publication reflects the way U.S. Army technical literature was maintained, revised, and supplemented over time. Manual changes like this were official working documents, intended to keep technical references current for personnel responsible for the identification, care, inspection, and support of the equipment covered. A listing for the 1948 TM 9-325 base manual identifies it as covering the 105mm Howitzer M2A1, M2A1 and M2A2 carriages, M4 and M4A1 combat vehicle mounts, ammunition, and accessory equipment.
The M2A1 105mm Howitzer, Carriages, and Combat Vehicle Mounts
The 105mm Howitzer M2A1 belongs to one of the most important U.S. artillery families of the mid-20th century. Rock Island Arsenal historical material identifies the M101 105mm howitzer, previously referred to as the M2A1, as the standard light howitzer deployed with the U.S. Army during World War II. It also notes that more than 10,000 were produced, with production running from 1941 through the end of the Korean War in 1953.
The M2A1 and M2A2 carriages are an important part of this manual’s subject matter. These carriage systems represent the support, transport, positioning, and field-service side of the artillery system, making this manual change relevant not only to the howitzer itself, but also to the carriage equipment that helped define how the system was documented, maintained, and supported.
The M4 and M4A1 combat vehicle mounts add additional collector interest because they connect the manual to vehicle-mounted artillery applications. The Army Historical Foundation notes that the 105mm Howitzer Motor Carriage M7 used the 105mm Howitzer M2A1 on the M4 Mount, tying this manual’s subject matter to self-propelled artillery history as well as to towed artillery documentation.
For collectors, this gives the change notice strong appeal. It represents a specific update to a major artillery manual and fits especially well in collections focused on 105mm howitzer equipment, U.S. Army artillery, Cold War technical manuals, Korean War-era ordnance, M7 Priest references, combat vehicle mounts, and Department of the Army publication history.
What This Manual Change Covers
As Change 3 for TM 9-325, this publication served as an official update to the original manual for the 105mm Howitzer M2A1, Carriages M2A1 and M2A2, and Combat Vehicle Mounts M4 and M4A1.
In practical collecting and historical-reference terms, a manual change like this is especially relevant for:
- technical manual revision history
- 105mm howitzer documentation
- M2A1 and M2A2 carriage reference
- M4 and M4A1 combat vehicle mount research
- Cold War-era ordnance reference
- archival and museum documentation
- completing or supplementing a TM 9-325 manual set
That makes it useful not only as a collectible, but also as a supporting reference for anyone studying how the U.S. Army maintained and updated technical documentation for major artillery systems from the post-World War II period into the early 1960s.
Historical Significance
The original TM 9-325 issue date of May 7, 1948 places the base manual in the early post-World War II period, while the March 1961 issue date of this Change 3 update places it firmly in the Cold War period. Together, these dates show how the Army continued to support, revise, and preserve documentation for artillery systems that remained important after World War II and the Korean War.
For collectors and historians, this manual change is especially relevant to subjects such as:
- TM 9-325 manual revisions
- Cold War U.S. Army technical manuals
- Korean War-era artillery documentation
- 105mm Howitzer M2A1 references
- M2A1 and M2A2 carriage documentation
- M4 and M4A1 combat vehicle mount references
- M7 Priest and self-propelled artillery history
Because it is a Change 3 update rather than the base manual, this item has added publication-history value. It helps document the official revision path of TM 9-325 and is especially useful for collectors working to complete a full manual-and-change set.
About This Manual Change
This listing is for Technical Manual Change 3 for TM 9-325, covering the M2A1 105mm Howitzer, M2A1/M2A2 Carriages, and M4/M4A1 Combat Vehicle Mounts. This Change 3 update was issued in March 1961 for the original manual issued May 7, 1948.
It is especially well suited for:
- U.S. Army technical manual collections
- Cold War and Korean War-era military paper collections
- 105mm howitzer reference collections
- artillery carriage and mount restoration research
- M7 Priest and combat vehicle mount displays
- museum exhibits on field artillery and self-propelled artillery systems
- collectors working to complete or supplement a TM 9-325 manual set
This listing is for the Change 3 update only unless otherwise stated. No complete base manual, 105mm howitzer, carriage, combat vehicle mount, ammunition, tools, parts, accessories, or additional equipment are included unless specifically shown or noted.
Why This Manual Change Matters
Many military manuals focus on rifles, pistols, vehicles, communications gear, or general shop equipment. This manual change documents a more specialized and historically important subject: the official update history for the 105mm Howitzer M2A1 and its associated M2A1/M2A2 carriages and M4/M4A1 combat vehicle mounts.
For collectors, it is a strong dated 1961 technical manual change with a focused artillery subject. For researchers, it offers a useful reference point for U.S. Army technical manual revision history during the Cold War period. For museums, it helps support displays that explain not only the howitzer system itself, but also the official publication updates, carriage references, combat vehicle mount documentation, and ordnance support structure behind its service life.
Because manuals and manual changes were working documents, surviving examples are valued not only for their content, but also for their connection to real military documentation, inspection, maintenance support, revision practice, and artillery administration.
Ideal For
This manual change is a strong fit for:
- U.S. Army technical manual collections
- Korean War-era ordnance reference collections
- 105mm Howitzer M2A1 reference collections
- M2A1 and M2A2 carriage research collections
- M4 and M4A1 combat vehicle mount documentation collections
- M7 Priest and self-propelled artillery displays
- museum and archival reference libraries
- collectors completing or supplementing a TM 9-325 manual set
Approx length 9", Approx width 6", Approx height .1", Approx weight .5lbs.
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