Which Shocks do ya'll recommend

airlaird

New member
OK, I am doing a springover this week on my M 416. I know the NAPA part number for the M416 replacement shocks. But, is the NAPA shock worth a damn..or is there a better shock?
airlaird
 

Tucson T4R

Expedition Leader
My King Kamper has rebuildable Fox shocks. So far ( about 3K miles) they work very well. They handle the slow articulating stuff well as well as the high speed washboard. Since they came on the trailer I have no idea what the intial cost would be but the perforamce has be excellent.
 

Robert Bills

Explorer
NAPA part no. 94038 shocks are made by Monroe and are a civilian replacement for the OEM M416 shocks. Inexpensive, readily available, and will last for years.
 

Robert Bills

Explorer
alia176 said:
Are these shocks particularly shorter or something?

Here is more than you ever needed to know about shocks for the M416, M100, MBT and T3 trailers:

The military technical manual for the M416 (TM 9-2330-251-14, September 1990 printing) does not list specifications for the shocks, only the CAGEC number (76445) and the part number (18459). The ORD part # for the M416 shock is 7088715.

CAGEC 76445 = Monroe
Nominal Extended Length = 17.438 inches
Nominal Compressed Length = 10.938 inches

The technical manual for the M100 (TM 9-871-A June 1951) lists the same ORD part number for the shocks as for the M416. The October 1949 MB/GPW parts list, ORD 9 SNL G-503, also shows the same ORD part number. Therefore, M416, M100, Willys MBT and Bantam T3 trailers can all use the same shocks.

Brent Mullins Jeep Parts (College Park TX) sells shocks for the M416, M100, MBT and T3. His part number is the same as the military ORD number (7088715). Cost is $22.50 each. I e-mailed Brent last year regarding his shocks. He responded that they are military surplus, NOS, in government packaging. http://www.mullinsjeepparts.com/

Shocks that fit the M416, M100, Willys MBT and Bantam T3 are also available from NAPA, part number RR 94038, $14.59 each per http://www.NAPAonline.com on 6/3/08. My research into trailer shocks in 2007 revealed that these are private labeled Monroe shocks. Specifications are:
Nominal Extended Length = 17.875 inches
Nominal Compressed Length = 11.25 inches

Pep Boys, Kragen, Autozone, etc. all carry shocks to fit these trailers. Have the counter man look up front shocks for a ‘49 Willys CJ-2A. (Shocks for the M416, M100, MBT and T3 are the same as the front shocks for the GPW, MB, M38, CJ-2, CJ-3 and early CJ-5.)
 

Robert Bills

Explorer
I just noticed that your original post mentions doing a spring-over conversion. That will alter slightly the collapsed and expanded lengths of the shocks you will need because the stock configuration has the lower shock mount under the spring and a spring-over flips the spring plate/shock mount to the top of the spring. This suggests a slightly shorter shock. However, since the shocks are mounted at an angle, the reduction in optimum shock length will be less than the thickness of the spring pack, which means this probably won't be an issue unless you plan to use the full articulation of your trailer springs, and even then you can compensate for shocks a little too long when fully compressed with slightly thicker bump stops (or a steel spacer under the stock bump stops).

You may want to look at this thread at www.g503.com which discusses shocks for the M416 and other 1/4 ton trailers, as it lists specifications for various shocks in addition to the NAPA #RR94038: http://www.g503.com/forums/viewtopic.php?t=72270

You may also want to "cycle" the springs on your trailer after the conversion to get measurements for the proper collapsed and expanded lengths for your shocks. The NAPA RR94038 will probably still work, but there may be something with a better fit.

Perhaps someone here has done a M416 spring-over and already knows the answer.
 

mep1811

Gentleman Adventurer
shocks

I have the Monroe shocks on myck mounts trailer. Just remember to relocate the shock mounts to the bottom of the axle or you will be wasting your time as the shock will be too compressed to do anything.
 

telwyn

Adventurer
The Monroe/NAPA shock info is great!

Wondering though if there is an Old Man Emu shock that could be used? If it's compatible with old jeeps should be easy enough, but I can't figure out which to get.

Thanks!
 

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