I had an accumulation of rockers and picked out what I felt were the better of the batch and sent 2 sets out to Rockers Arms Unlimited.
They inspect them and if all is good resurface them. I asked them about hardening and they said they have done many of these and never needed to do so.
About 120$ a set.
The $2300.00 set that Pinks made for Leno was IMHO money not well spent.
http://rockerarms.com/index.html
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When I die, I want to go peacefully like my grandfather did, in his sleep.
Not screaming like the passengers in his car.