Finished the F250, brought it to the DMV and it passed without any issues, so now we can turn our attention back on the Viking!
Started to disassemble the front. for us it's a different model than we're used to, so It took us a good 3 ours to get the fenders and front of, but luckily we only encountered small rust problems (a.k.a. holes) at the front cab mounts.
Took out the steering column because we couldn't turn the wheels and indeed the steering gear was completely stuck. When we took it apart, we noticed that most of the grease had left and water replaced it. the bearings are all gone, but also the bearing saddles (I hope that's the right terminology) are all beyond repair.
Thinking it would be hopeless I just googled C60 Steering box and whaddaya know! I found one. it looks exactly the same, it only states 1/2 ton to 1 ton, but what difference the load capacity makes.
https://www.rockauto.com/en/catalog/chevrolet,1958,truck,4.3l+261cid+l6,1325944,steering,steering+gear,7416Edit..better read twice because I now see it's a send and rebuild service