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Old 04-21-2001, 11:54 AM
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Join Date: Mar 2001
Location: Accokeek, MD
Posts: 683
Whenever I pass over a sharp bump I get a clunking sound from my 1987 300E. I looked under the car thinking it might be the exhaust banging against the frame. Rather it seems to be from the mounts that hold the rear end gear box (center pot) to the undercarriage of the car. The rubber mounts or grommets are worn and it appears as though metal is hitting metal when I hit a sharp bump. They are attached with Allen head bolts.

Does anyone know if these mounts are easily replaceable and what the procedure is to remove and replace them? The procedure appears to be: the rear gear box must be held up with a floor jack and the Allen bolts then removed from the mounts. There then remains a metal collar that the bolt passes through and a rubber sleeve around the outside of the metal collar.

There are grooves molded into the metal collar that I suspect might be for attaching a special tool so that the collar and rubber sleeve (mount) can be screwed out from whatever it is attached to... the beam of the undercarriage or the gear box.

If I am correct in my analysis so far... what tool do I need to get the old mounts out and to replace them with new ones.

Smiles and thanks in advance. Also does anyone know the part number for the mounts so that I can order them from this web site?

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Earl



1993 190E 2.3
2000 Toyota 4x4 Tundra
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Old 04-21-2001, 10:29 PM
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Join Date: Jan 2000
Location: New Bedford, MA USA
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Rear Subframe Mount Boge $23.06 From parts shop here. R&R is pretty straight forward. Drive shaft will need to be supported as well.

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Jeff Lawrence
1989 300e
2000 Dodge Grand Caravan SE
No matter what you fix, there will always be something else to fix..
"Warranty" is just another way of postponing the inevitable.
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Old 04-21-2001, 10:39 PM
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Join Date: Jan 2001
Location: Tucson, Arizona
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Earl, You're half-way there

Greetings Earl,

I think you're already a willing home mechanic that has analyzed the situation and knows what needs to be done. Just order the parts and ensure you have a set of metric allen head sockets, Wal-Mart carries a set for under $10 from 8mm down. This spread should cover your size requirement. Good luck and have fun.

Love the smell of well burnt Diesel

Charles
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Old 04-21-2001, 11:02 PM
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Join Date: Mar 2001
Location: Accokeek, MD
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OK guys... thanks. I just went out and checked the size of the allen bolts. They are larger than my largest wrench which is 10mm. Looks like I have to make a trip to Sears for a larger socket.

Smiles.
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1993 190E 2.3
2000 Toyota 4x4 Tundra
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  #5  
Old 04-22-2001, 11:07 PM
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Join Date: Jan 2001
Location: Tucson, Arizona
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Greetings Earl, allen size bolt, did you say?

Haven't quite figured out what type of bolt you are speaking of, but if it's an allen head bolt the outside of the head would be smooth and the allen head insert would be inset into the rounded head. Sure it's not just a metric bolt? O'reilly automotive sells individual sockets and allen bit sockets as well.



Charles
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