M151A2 Shock Absorber

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FoxMike
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M151A2 Shock Absorber

Unread post by FoxMike » June 14th, 2025, 10:17 pm

In episode 6 of the jeep turning into Christine, I was out for a drive today, heard a ping and saw something bouncing down the road, and noticed a change in the ride. Pulled over and looked underneath and saw the driver side rear shock hanging :shock: Luckily just down the road from home.

Doing some digging on the site, it looks like my rear shocks are not stock. They're Monroe 32207 (I think not correct for A2). As such, there are a few parts on mine that are not shown on the TM 9-2320-218-34P diagram. There are some spacers and a washer on the bolt. What do the experts thing my way forward is on this? I'm guessing the advice will be to source A2 shocks rather than mess with the Monroe's.

This is the right side also disassembled.
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M151A2 AMG
1952 M38A1 sold

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glcaines
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Re: M151A2 Shock Absorber

Unread post by glcaines » June 14th, 2025, 10:33 pm

M151A2 front shocks are fairly easy to find from multiple sources. However, I have never been able to find NOS rear shocks in the U.S. and they are no longer manufactured. I have been able to find NOS rear shocks for sale in Germany and Greece in the past, but expensive. I may have seen them for sale at a parts house in Thailand as well, but not certain. I had one rear shock that started leaking slightly, but stopped leaking so I never replaced them and they seem to be working fine. If you are missing the correct shocks you likely will have to go the expensive route for NOS ones or try some old used ones.
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rickf
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Re: M151A2 Shock Absorber

Unread post by rickf » June 15th, 2025, 8:05 am

Guy from CMD found some that are very close to the stock size and function. He might see this or you can PM him.
1964 M151A1
1984 M1008
1967 M416
04/1952 M100
1953 M37 W/W
1953 M37 converted to 12 volt

Hambone
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Re: M151A2 Shock Absorber

Unread post by Hambone » June 15th, 2025, 9:32 am

Monroe part #66627

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FoxMike
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Re: M151A2 Shock Absorber

Unread post by FoxMike » June 16th, 2025, 2:09 pm

OK, thanks for the info guys. Will try those other Monroe shocks. Follow up question. I don't see a reference for these flange bushings pictured on the bolt. Seems like they are needed due to the diameter of the bracket on the jeep. Of course the local hardware store does not have matching sizes so looking for a source/part #s if these are supposed be on a M151A2.
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rickf
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Re: M151A2 Shock Absorber

Unread post by rickf » June 17th, 2025, 8:41 am

Does that shock have that much side play between the bushings inside the mount? That setup you are showing looks like it is designed to work on a split bushing. I have not seen split bushings on much of anything besides aftermarket poly bushings. Plus, those spacers are two different sizes, looks like one would go inside the bushing but not the other. Just not making sense to me.
1964 M151A1
1984 M1008
1967 M416
04/1952 M100
1953 M37 W/W
1953 M37 converted to 12 volt

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FoxMike
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Re: M151A2 Shock Absorber

Unread post by FoxMike » June 17th, 2025, 11:18 am

Yes, there was some side play that was attempted to be minimized by adding the bushings and washer . It's making sense to me now that these extras are work arounds by the previous owner. I can assume that the correct shock won't have any play and therefore don't need these extras.
M151A2 AMG
1952 M38A1 sold

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rickf
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Re: M151A2 Shock Absorber

Unread post by rickf » June 17th, 2025, 11:58 am

In the -34P manual go to figure #99 and you will see the rear A2 shock. No spacers.
1964 M151A1
1984 M1008
1967 M416
04/1952 M100
1953 M37 W/W
1953 M37 converted to 12 volt

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FoxMike
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Re: M151A2 Shock Absorber

Unread post by FoxMike » June 17th, 2025, 1:04 pm

Yep. Posted at the top and it's what made me start questioning that the setup wasn't right. That and the shock coming loose....
Will follow-up with how the new ones fit. Thanks again guys for adding clarity.
M151A2 AMG
1952 M38A1 sold

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FoxMike
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Re: M151A2 Shock Absorber

Unread post by FoxMike » July 6th, 2025, 10:35 am

Monroe 66627 seems to be a good fit. Lined up perfectly in the 'neutral' extend/compress position. The shocks on there previously were definitely too long and I'm pretty sure it is a better ride now too. While it's not great to have things go wrong with the vehicle, each time I learn something new.
M151A2 AMG
1952 M38A1 sold

Hambone
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Re: M151A2 Shock Absorber

Unread post by Hambone » July 6th, 2025, 11:28 am

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svramselaar
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Re: M151A2 Shock Absorber

Unread post by svramselaar » July 6th, 2025, 12:24 pm

hi
i wil be the bad

the MUTT shock part no 11641029

length extended 15.260 inch
length compressed10.580 inch

Monroe part #66627

length extended 14.4531 inch
length compressed 10.4375 inch

this mean the wheel can less move down
it is posseble at the upper stand it will not get to the rubber bumper stop

george

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