I got a dust seal service kit for my Slides but it didn’t come with replacement footnuts, just some weedy looking o rings. So I re-fitted the original footnuts (10mm nuts with what look like plastic washer inserts). About half of te 15cc of lower leg oil has leaked out of the brake side leg. I’m thinking it might be the footnut being worn, anyone know where I can get replacements?

Local bike shop?

Upgrade Bikes, Freeborn or Eighteen would be on the list to call.

I think it is best practice to replace those washers every time you service a fork, so that you avoid the leak you’ve got….but try sourcing them!