Rubber Pad on 8 3/4 Spring setup?

Heres pics of orig 69 cuda 8 3/4 "S" leafs. I had them re-arched. Not sure if steel/rubber banding is 100% oem?
There are plastic shims between the leafs(see first pic) that are original.


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Sorry but thats not what I'm talking about.

Thanks though. ;}