Heres a long shot . . .

Has anyone found fiber reinforced rubber that is close to the original material used on the AAR-T/A Exhaust Hangers?

I'm looking to replace mine and would really like to keep the material as close to original as possible, note the ribbed pattern on one surface, similar to the inside of a tire, and the smooth opposite surface.

Scoured the internet but not wild about ordering large quantities from India or China, thought maybe an old corded tire (no steel belts)?

The rubber measures .307'ish thick.

Really hoping to pull a rabbit from a hat on this one, any help is appreciated.