As far as I know my 82 muffler is original, but it gives out a light Thumping noise when U just start increasing speed, say in the 5-25 MPH range. U can hear it from behind the driver. Once up to speed it is quiet.

I removed the pair in middle and straight piped that part.

Only one left is at rear. Thanks!

Strange German Steel to last this long. No holes anywhere just internal Thumping.

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1982 300SD

Yes when the rubber hangers all go they thump over bumps,, and speed bumps--pretty much everything. they grind and spark and rattle too

Might it be the exhaust pipe that connects the transmission and differential? That might be a carrier bearing or mount failing.

Sixto
87 300D

Funnie,

I know my rubber hangers aren't bad cause I have 4 tie wraps per side...lol

And they are carefully adjusted as not to cause any problems, ie bumping.

The Thumping noise isn't it hitting anything it is an internal noise that U can only hear inside the vehicle.

I know I need a new one but just haven't gotten one.

Phil sent me square ones before instead of the donuts.

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1982 300SD

ya may want to inspect your flex disks and axles...

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John HAUL AWAY, OR CRUSHED CARS!!! HELP ME keep the cars out of the crusher! A/C Thread
"as I ride with my a/c on... I have fond memories of sweaty oily saturdays and spewing R12 into the air. THANKS for all you do!

My drivers:
1987 190D 2.5Turbo
1987 190D 2.5Turbo
1987 190D 2.5-5SPEED!!!

1987 300TD
1987 300TD
1994GMC 2500 6.5Turbo truck... I had to put the ladder somewhere!

Discs look great and axles look good too. No wear or slop any where. Was under there yesterday. Noise as far as I can tell is from inside rear muffler but only at start up. Thanks neighbor!

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1982 300SD

Sounds (OK, reads) like the failed center bearing carrier on my W123.

yup its goin around.