Great. Another win for me ... I'm definitely not getting the DIYer of the Year Award this time around.

Now that I think about it I can guess how it happened ... it was sitting with a support under the muffler, but not forward of the muffler. Since it sat for a long time like that, it probably sagged.

Will it hurt to drive it like that? Other than the vibration being a little annoying at idle and very low throttle, it doesn't seem to cause problems.

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1987 300D, arctic white/palomino--314,000 miles
1978 240D 4-speed, Euro Delivery, light ivory/bamboo--370,000 miles
2005 Jeep Liberty CRD Limited, light khaki/slate--140,000 miles
2018 Chevy Cruze diesel, 6-speed manual, satin steel metallic/kalahari--19,000 miles
1982 Peugeot 505 diesel, 4-speed manual, blue/blue, 130,000 miles
1995 S320, black/parchment--34,000 miles (Dad's car)