M-100 to M-38

1952 - 1968, M38A1, M170, questions, discussions, regarding anything related to the M38a1 series.
chucks_toy
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M-100 to M-38

Post by chucks_toy » Tue Oct 17, 2006 4:42 pm

I have purchased a 1951 m-100 to go with my 1951 m-38. The safety chains on the trailer are original, but when I try to attach them to the jeep, there is nothing there to attach to. Any ideas how and where the chains attach to the jeep. Thanks, Chuck
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Chuck W.
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Post by Chuck W. » Tue Oct 17, 2006 5:41 pm

I always thought the chains hooked to the two rear lifting shackles, but my M-100 does not have the chains.
Here's a link to TM 9-2330-201-14 that you might find handy, found, of all places, on the Toyota Landcruser page!
http://www.ih8mud.com/tech/m100-m115.pdf

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Post by Wes K » Tue Oct 17, 2006 6:13 pm

Chuck is correct, to the rear shackles.

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m-100

Post by chucks_toy » Wed Oct 18, 2006 3:16 am

Thanks to all who have responded this post. My m-100 trailer does not have chains long enough to reach the lifting shackles. They have only 11 links in them. It looks like they should hook around the pintle hook some how. I have a m-416 trailer that has the longer hooks, but did not know if they were the same as the m-100. Thanks, Chuck
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Post by Wes K » Wed Oct 18, 2006 7:15 am

Chuck,
If the chains don't reach they are probably the early original chains. If you're not concerned with resto points then you have two more choices. 1-Add the WWII jeep lower pintle eyebolts 2-Add the flat adapter plate from the M151 that fits between the pintle and the frame and has two ears sticking out at an angle with holes for the chain.

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M100

Post by chucks_toy » Wed Oct 18, 2006 6:41 pm

Thanks to all of you who have responded to my post. I would like to go with I-bolts like on the earlier jeeps. Does anyone have any idea where I can get these? Thanks, Chuck
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kb1zq
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Post by kb1zq » Wed Oct 18, 2006 7:57 pm

I would suggest getting some cast Eye bolts from the hardware store of the proper size and heating them with a torch and bending your own... Unless a vendor carries them... You might try Ron here at the G503...

Hope this helps...
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Post by CGarbee » Thu Oct 19, 2006 8:59 am

Why not lengthen the safety chain on the trailer (or swap to a newer set of chains say from a M416 trailer)?? Might be easier...
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m-100

Post by chucks_toy » Sun Oct 22, 2006 2:12 pm

I am most interested in putting it back the way it was when the m-100 came out with these shorter chains. This is a 1951 model trailer, so I thought the m-38 had a way to connect the shorter chains. Anybody have an early m-38 that might share a picture using the shorter chains? Thanks, Chuck
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Post by ECVJeeps » Sun Oct 22, 2006 5:49 pm

This is the set up on two M38''s that I have and am working on.

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Post by Wes K » Sun Oct 22, 2006 10:49 pm

That's a fairly common Canadian setup. Even the short chained WWII MBT and T-3 trailers often ended up with the longer 1 ton trailer chains. Obviously in 1950 the Willys pintle engineer never had any contact with the Dunbar Kappel safety chain engineer. :roll: So the Army said WHOA either give us the pintle chain eyes or gives us longer chains. They got longer chains. If you want what most likely was on that first few months of production M100's I'd bet they where standard stock chains that the WWII MBT and T3 already had.

As for the parts books the 52 and 72 M100 parts lists show only the 7328317 Dubar Kappel chain. So sometime during the early production period (1950/51) the change must have occurred and the shorter chain never got listed. You can't trust the illustrations in the 52 and 72 M100 parts list because the Army used a lot of existing illustrations from the WWII trailer. So when you count links in the chains you get 11 links for the MBT, T3, and M100. The M100 manuals still show the 3 position landing leg that was not used on the M100 but the illustartion came right out of the WWII trailer parts manual.

Even in this illustration we see the WWII jeep posing with the M100 chained to it. Again with 11 link chains. This is TM 9-871A M100 Ops Manual dated July 1951.

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MY CAN AM SAFETY SET UP

Post by Joe Gopan » Mon Dec 05, 2011 6:44 pm

This is how the Canadian Army secured the M-100 Trailer Safety Chains to the M-38A1 CDN. (Note the late Pintle Hook with the Safety Pin)
The M-100 used the same Safety Chain and Hooks as the MBT/BT3. The Canadians came up with a way to attach the M-100 Safety Chains while the US Army had a bulletin to cut off the Safety Chains at the Wedges.

Note that I have an M-151 Pintle Hook with the Safety Pin. It is in the interest of safety.
Attachments
GMC_cab,_CDN_Safety,_Radio_013.JPG
CANADIAN SAFETY CHAIN BRACKET ON MY M-38A1
GMC_cab,_CDN_Safety,_Radio_013.JPG (161.57 KiB) Viewed 2024 times
GMC_cab,_CDN_Safety,_Radio_012.JPG
BRACKET IS MADE FROM 1/2" STOCK
GMC_cab,_CDN_Safety,_Radio_012.JPG (144.13 KiB) Viewed 2024 times
Last edited by Joe Gopan on Mon Nov 19, 2012 9:10 pm, edited 1 time in total.
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Re: M-100 to M-38

Post by Joe Gopan » Tue Dec 06, 2011 4:18 am

Note the ORD# cast into the base of the GI Issue Pintle Hook.
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Re: M-100 to M-38

Post by Cuz » Tue Dec 06, 2011 12:15 pm

Note the ORD# cast into the base of the GI Issue Pintle Hook.
Need a closer photo to do that. Can only make out the 707XXXX.
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Re: M-100 to M-38

Post by Joe Gopan » Tue Dec 06, 2011 12:26 pm

You can find it in the ORD 9 Group 1503 under Pintle, towing, less lock and latch.
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