Description
Own a serious piece of Vietnam War-era heavy artillery documentation with this Technical Manual Change 3 for TM 9-1000-218-35. This change notice covers the 175mm M113/T256E3 Gun Cannon, 8-Inch M2A1E1 Howitzer Cannon, and M158/T185 Mount.
This is a Change 3 update for the original TM 9-1000-218-35, issued August 20, 1962. It is not the full base manual. For collectors, that makes it a valuable companion piece for completing the publication history of the M107/M110 heavy artillery technical manual set. The original manual is identified as covering the 175mm M113/T256E3 gun cannon, 8-inch M2A1E1 howitzer cannon, M158/T185 mount, and related loader and rammer equipment.
Historical Significance
The equipment covered by this manual is directly tied to two of the biggest U.S. self-propelled artillery systems of the Cold War: the M107 175mm Self-Propelled Gun and the M110 8-Inch Self-Propelled Howitzer.
The M107 and M110 shared the same basic vehicle family, but used different tubes. The 175mm gun gave the M107 extreme long-range firepower, while the 8-inch howitzer gave the M110 heavy projectile weight and strong field artillery impact. The M107 and M110 had identical carriages with different tubes, with the 175mm gun firing a 174-pound projectile nearly 33 kilometers and the 8-inch howitzer firing a 200-pound projectile nearly 17 kilometers.
That gives this October 1968 Change 3 strong collector appeal. It comes from the Vietnam War period, when large self-propelled artillery systems were an important part of long-range fire support.
The M107 and M110 Heavy Artillery Connection
This manual change sits right in the world of big-gun Cold War artillery. The M107 carried the long 175mm gun. The M110 carried the 8-inch howitzer. Both systems had serious battlefield presence.
The M107 and M110 shared the same low hull, weapon mounts, loading and ramming devices, and rear stabilizing spade. That shared design makes manuals like this especially interesting because they document the cannon, howitzer, and mount systems behind both platforms.
The M158 mount is another major point of interest. It was a hydropneumatic, variable-recoil mount that supported the gun during recoil and counterrecoil. That kind of heavy mount hardware is exactly what makes this manual appealing to serious artillery collectors.
What This Change Covers
As Change 3 for TM 9-1000-218-35, this publication updated the field and depot maintenance manual for the heavy cannon, howitzer, and mount equipment listed above.
This manual change is especially relevant for:
- 175mm M113 / T256E3 gun cannon documentation
- 8-Inch M2A1E1 howitzer cannon reference
- M158 / T185 mount research
- M107 and M110 self-propelled artillery collections
- Vietnam War artillery research
- Cold War heavy artillery displays
- field and depot maintenance manual sets
- museum and archival reference libraries
- collectors completing a TM 9-1000-218-35 manual set
Manual changes are often harder to find than base manuals. They were working updates, and many were separated from the original publication over time.
Key Features
- Technical Manual Change 3 for TM 9-1000-218-35
- Covers the 175mm M113 / T256E3 Gun Cannon
- Covers the 8-Inch M2A1E1 Howitzer Cannon
- Covers the M158 / T185 Mount
- Dated October 1968
- Updates the original manual issued August 20, 1962
- Field and depot maintenance manual update
- Strong Vietnam War / Cold War heavy artillery subject
- Connected to the M107 175mm Self-Propelled Gun
- Connected to the M110 8-Inch Self-Propelled Howitzer
- Excellent companion piece for a complete technical manual set
Why This Collectible Stands Out
This is not a manual change for a common rifle, truck, or small accessory. It is tied to some of the largest and most recognizable U.S. self-propelled artillery systems of the Vietnam War era.
The M107 had range. The M110 had heavy howitzer power. The M158/T185 mount connected both systems to the technical maintenance world that kept them in service.
For collectors, this piece has real big-artillery appeal. It belongs with M107 manuals, M110 manuals, 175mm artillery references, 8-inch howitzer material, and serious U.S. Army ordnance documentation.
About This Manual Change
This listing is for Technical Manual Change 3 for TM 9-1000-218-35, covering the 175mm M113/T256E3 Gun Cannon, 8-Inch M2A1E1 Howitzer Cannon, and M158/T185 Mount, dated October 1968.
This listing is for the Change 3 update only unless otherwise stated. No complete base manual, cannon, howitzer, gun mount, loader, rammer, vehicle, ammunition, tools, parts, storage case, or additional accessories are included unless specifically shown or noted.
Ideal For
This manual change is a strong fit for:
- Vietnam War-era U.S. Army technical manual collections
- M107 175mm self-propelled gun reference libraries
- M110 8-inch self-propelled howitzer collections
- Cold War heavy artillery displays
- 175mm and 8-inch ordnance collectors
- field and depot maintenance manual collections
- U.S. Army Ordnance Department publication libraries
- museum and archival reference collections
- collectors completing a TM 9-1000-218-35 manual set
Approx length 10", Approx width 8", Approx height .2", Approx weight .2lbs.
Pictures are stock images of our inventory. Unless otherwise noted, you will not be receiving the exact item shown in the pictures. The pictures are representative of the item's general condition. The item you receive might be slightly better, or worse, condition than was shown in the pictures.
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