If yours are original they will be stainless, note SS is relatively soft and grit trapped in the Devol will wear the Kingpin rather than the bush, Devol swells microscopically when wet and can nip the kingpin causing a notchy stiff steering feel
I note that there was some king pin play a few years ago in the advisories on the MOT docs, but then in the subsequent years this advisory disappeared so I assume they were replaced. On checking the pins when working on the car the last few days, they looked in great shape. I've got bottom gaiters in the rebound spring, and have give, everything a good clean, so hopefully I won't have any issues, but if I do, it would, be good to be able to just by some new pins and slip them straight in.
