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  #1  
Old 12-30-2020, 07:38 PM
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I don't know if his thread still might list him as Army but is now called Stretch.

He measured the thickness he needed and got a thicker Spacer and took it or them to a machine shop and they threw it on top of a magnetic chuck that held the spacer flat in place and the grinder passed over it and ground it to the thickness needed.

I asked how he measured it to fine out what size was needed and it would be better if you found the thread for the exact words on that.
Something like He used feeler gauges inside of the differential where the C=clip is and measured that protrusion space between the clip and the gear. One would assume that was done without the Spacer on the axle.
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Old 12-31-2020, 07:33 AM
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So, my 83 240D is gonna need axles soon. Lots of posts and lotsa words in this thread. If I'm reading things correctly and also properly deciphering the tea leaves, the shims/spacers are completely unnecessary? Save for an occasional "clunk" that is mentioned? My question and the bottom line: Is the statement correct about not needing shims?
Given a choice, I'll always favor the "KISS" rule. Especially on a 37 (soon to be 38) year old car that ain't no cream puff, show winner or BaT listing.....
Naturally, I'd reuse what's already there, if possible. Otherwise, those shims are lookin for a new home....
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Old 12-31-2020, 12:01 PM
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Quote:
Originally Posted by 123boy View Post
So, my 83 240D is gonna need axles soon. Lots of posts and lotsa words in this thread. If I'm reading things correctly and also properly deciphering the tea leaves, the shims/spacers are completely unnecessary? Save for an occasional "clunk" that is mentioned? My question and the bottom line: Is the statement correct about not needing shims?
Given a choice, I'll always favor the "KISS" rule. Especially on a 37 (soon to be 38) year old car that ain't no cream puff, show winner or BaT listing.....
Naturally, I'd reuse what's already there, if possible. Otherwise, those shims are lookin for a new home....
I can only give opinion. Shims/Spacers are necessary for 2 reasons. One is when you get the clunk you are stressing something that the clunk my eventually case harm to. Next is the Seal that rides on the Axle shaft (seal attached to the differential housing) is not made to seal something that goes in and out.

Also if the Axle goes in and out when dirt gets on the Axle in the out position when the Axle moves in the Seal has to scrape the dirt off which is going to wear the seal lip faster.

So there is what you can get away with on a temp basis and then there is the possible future issues a Clunk is going to cause.

Also the real Mercedes Axles sometimes need different sized Shims/Spacers from what I have read with the aftermarket axles that is even more so.
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Old 11-22-2023, 06:17 PM
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Originally Posted by Graham View Post
General question - When buying aftermarket axles, how many of you that installed them found a need to replace the shim washers?
Or they don't check or care.
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Old 11-22-2023, 06:23 PM
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It was a long time ago. We have a member who was known as army and changed his member's name to stretch.
I asked him how he determined what thickness he needed, and I cannot remember exactly how he did it be he answered my question in the thread and somehow used feeler gauges to degerming what thickness was needed.

There was no spacer that matched the thickness he wanted. I suggested he get a thicker one and have it surface ground at a machine shop. That is fairly quick procedure as they place the spacer on a magnetic chuck, turn the electromagnet on and let the grinder reduce the size. And he did that, and it worked for him.

On aftermarket axles there was a problem with the machining of the radius as it transitions from the flat part on into the stub shaft. On the originals the transition was closer to 90 degrees as the spacer is supposed to go flush against it. With the aftermarket axles the stock spacers would not go all the way to the flat face of the axle as then hung up on that radius. The inside diameter of the spacers on one side had to be enlarged.

The do make shims with holes in them. The outside diameter may need to be ground off. Similar issue if a large washer was used.
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