MBT/M100/M416 comparison

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Alexandre
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Re: MBT/M100/M416 comparison

Post by Alexandre » Fri Oct 28, 2016 11:38 pm

Hi,

Here In an other g503.com thread "M416 Lunette and Casting for trade" I have noticed two things that I don't understand :
"M100 and the M416 use the exact same thick shaft Lunette", and
"The M100 Lunette is much more narrow than the M416 Lunette"

So are they the same or not ? , as for instance Midwest sell repro M100/M416 Lunette without any difference...

(I have this "incorrect" Lunette on the Bantam I just bought, that I would to swap to a correct wwii lunette, but I have to figure out what I have first..., picture unavailable yet but as far as I can remember the shaft is as big as the ring.

Thanks in advance,

Alex.
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Re: MBT/M100/M416 comparison

Post by Joe Gopan » Sat Oct 29, 2016 12:30 am

Early 1951 dated M-100's did have the WWII "thin neck" Lunettes from the factory (and no, it does not show in any of the SNL G-747 manuals) . The ORD 7328311 "thick neck" Lunette was installed on later M-100's and all M-416's.
Right, Chuck? :wink:
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Re: MBT/M100/M416 comparison

Post by Joe Gopan » Sat Oct 29, 2016 7:44 am

Look for a number that is forged onto the shaft.
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Alexandre
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Re: MBT/M100/M416 comparison

Post by Alexandre » Sun Oct 30, 2016 3:52 am

Ok I will, tks very much. Not before mid December, I am far away from home...

Regards,

Alex
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Chuck Lutz
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Re: MBT/M100/M416 comparison

Post by Chuck Lutz » Sun Oct 30, 2016 10:38 am

I believe that some of the first M100s used the THIN lunettes found on T3s and MBTs as Joel correctly stated!
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Re: MBT/M100/M416 comparison

Post by Alexandre » Fri Nov 11, 2016 2:38 am

Hello,

I have measured the shaft and the diameter is about 4,3 cm.
And yes indeed there is a very faint marking, something like AB6370 WO or AE6370 WD (?)...

Best regards,

Alex
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Re: MBT/M100/M416 comparison

Post by Chuck Lutz » Sun Mar 24, 2019 9:02 am

The AE6370 lunette is the same thin shaft style used on WWII MBTs. It was also used on EARLY (first contract) M100s as Joel correctly reported.
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Re: MBT/M100/M416 comparison

Post by Alexandre » Wed Mar 18, 2020 7:21 am

Hi Chuck,

Thank you for your help, I will post a picture of the lunette, but the marking I reported is on the (big) shaft and not the thin one I have on my 1942 MBT.

Regards,

Alex
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Re: MBT/M100/M416 comparison

Post by bugcape » Mon Jun 28, 2021 12:08 pm

I had to move my Converto Dump trailer project recently. It needs a lunette because the old farmer had welded two 1" steel plates,
with the thick lunette sandwiched between. And when I say he welded it, he must've used five or six rods on this mess. So, needing
to move the Converto, I used the lunette from my M416. I had noted that this works in a pinch, but the tapered face of the 416 lunette
doesn't fit all the way inside the "receiver cone" of the Converto, revealing about 1/4" of the tapered part. So I wouldn't recommend
interchanging either as a permanent fixture.
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Re: MBT/M100/M416 comparison

Post by bugcape » Tue Aug 10, 2021 6:28 pm

Here's the amazing farmer's lunette with the welded plates. And the M416 lunette mounted on the Converto Dump trailer.

Image
Image
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Re: MBT/M100/M416 comparison

Post by markrdje » Tue Aug 10, 2021 6:42 pm

The links just take you to postimage's site, no pics
change user name to mark

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Re: MBT/M100/M416 comparison

Post by bugcape » Tue Aug 24, 2021 3:54 pm

Not sure what's going on there, but the images show on my view. Don't know what to do to improve that.
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Re: MBT/M100/M416 comparison

Post by markrdje » Tue Aug 24, 2021 4:43 pm

It takes me to my postimage page
change user name to mark

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Re: MBT/M100/M416 comparison

Post by Frank USMC » Sat Nov 19, 2022 1:02 pm

Hope some one can help so I can not make an expensive mistake....
Will a WW2 trailer body fit on a M100 frame?...as in bolt on?
Thanks
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Bill H.
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Re: MBT/M100/M416 comparison

Post by Bill H. » Sun Nov 20, 2022 3:56 pm

Frank USMC wrote:
Sat Nov 19, 2022 1:02 pm
Hope some one can help so I can not make an expensive mistake....
Will a WW2 trailer body fit on a M100 frame?...as in bolt on?
Thanks
One of the few, Frank USMC RET
Yes, the M100 and MBT are dimensionally the same and attach the same (stitch welded).

The M416 box bolts on, the MBT and M100 are stitch welded.
Bill H.

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1952 Dunbar Kapple M100
1953 Willys M38A1
1962 AMC M422A1
1965 Stevens M416B1 X 2
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