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#1
02-29-2008, 09:09 AM
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Rear End Noise
I have an '81 240D manual that makes a "clunking" sound when I shift from 2nd to 3rd and then to 4th. Seems to come from the rear end. After shifting all is quiet and smooth. Anyone have any idea what this noise might be?
Thanks, Jim
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'81 240D 4-Speed 328K (Daily Driver)  '01 Cadillac SLS 135k (currently up for sale) 
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#2
02-29-2008, 09:38 AM
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Our '83 300SD does that too. It is likely due to a worn differential or worn CV-axles (or both).....its been doing it for 40k+ on ours....so I'd say drive it till it gets worse or something bad happens. Its not like a 240 puts all that much strain on the drive components as it is.
 
__________________
-diesel is not just a fuel, its a way of life-  '15 GLK250 Bluetec 118k - mine - (OC-123,800) '17 Metris(VITO!) - 37k - wifes (OC-41k) '09 Sprinter 3500 Winnebago View - 62k (OC - 67k) '13 ML350 Bluetec - 95k - dad's (OC-98k) '01 SL500 - 103k(km) - dad's (OC-110,000km) '16 E400 4matic Sedan - 148k - Brothers (OC-155k)
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#3
02-29-2008, 09:40 AM
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Quote:
__________________
the sooner you start... the sooner you'll get done  If it ain't broke, don't fix it.. Its always simpler to tell the truth... 2007 Honda Accord EX 2007 Honda Accord SE V6 96 C220 97 Explorer - Found Another Home 2000 Honda Accord V6 - Found Another Home 85 300D - Found Another Home 84 300D - Found Another Home 80 300TD - Found Another Home Previous cars: 96 Caravan 87 Camry 84 Cressida 82 Vanagon 80 Fiesta 78 Nova Ford Cortina Opel Kadet 68 Kombi Contessa
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#4
02-29-2008, 10:21 AM
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I would think if the driveshaft u-joint were real loose that you'd get some pretty severe vibration wouldn't you?
__________________
-diesel is not just a fuel, its a way of life- '15 GLK250 Bluetec 118k - mine - (OC-123,800) '17 Metris(VITO!) - 37k - wifes (OC-41k) '09 Sprinter 3500 Winnebago View - 62k (OC - 67k) '13 ML350 Bluetec - 95k - dad's (OC-98k) '01 SL500 - 103k(km) - dad's (OC-110,000km) '16 E400 4matic Sedan - 148k - Brothers (OC-155k)
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#5
02-29-2008, 10:24 AM
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dont forget the carrier bearing/ rubber mount.
diff will probably howl a bit if it is loose enough to clunk. check flex discs. a failure of any of these components at hiway speeds is dangerous. sure, there is a chance it could be something minor that you can run for many miles, but you should get under there and verify what is wrong....
__________________
1984 123.193 372,xxx miles, room for Seven. 1999 Dodge Durango Cummins 4BTAA 47RE 5k lb 4x4 getting 25+mpgs, room for Seven.
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#6
02-29-2008, 02:56 PM
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Thanks to all. I will get in on a lift Monday to have it checked.
__________________
'81 240D 4-Speed 328K (Daily Driver) '01 Cadillac SLS 135k (currently up for sale)
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