About 3-4 months ago I installed a set of new rubber exhaust hangers. I got the reinforced type (not the donut type). Now they are cracked and look like they could give out.

I noticed this same thing on the 300SD I used to own. They only lasted 6 months before falling apart. I guess they are just made out of bad rubber.

The OEM donut type seem to last for decades (though they eventually stretch out and get hard).

I really like how the reinforced hangers keep the exhaust secure, but they just don't last (less than a year). I guess I should go back to the donut type. Is this consistent with others' experiences?

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1967 W110 Universal Wagon, Euro, Turbo Diesel, Tail Fins, 4 Speed Manual Column Shift, A/C
1980 W116 300SD Turbo Diesel, DB479 Walnut Brown, Sunroof, Highly Optioned, 350,000+ Miles