help with 66 steering / suspension

[Ghernandez66]

I have a couple issues with my 66 and would like the help from you guys to figure out how to get this issues resolved.
My first issue is my steering box apparently decided to lock and fall apart today. Since I took apart a C20 I took the steering box from it but to me it looked a little different has anyone done this ? Would this be a straight bolt on or do I have to modify anything?
Next issue I got is that who ever bagged the truck for the PO did an amazing job welding the front upper mounting plates to the crossmember and even drilled holes and instead of using bolts he fill the holes with weld.
I can't take it back and have him fix it since It's been done for a couple years so should I replace the whole crossmember cause of this? Or what other options do I have ?


Thanks for the help in advance.