savage21 bell crank steering bearings

[notatoy]

hi guys hope you can help iam sure you can , as this forum as helped me out many times before .. i bought a savage 21 roller from the bay with the intention of brushles conversion , now when i tore it down i noticed in the bell crank steering there is plastic bushings or atleast there was one .lol. some missing any how my question is can install steel roller bearings here if so what are the sizes and where can i purchase them any help appreciated guys thanks in advance ..