Broken aluminium block under steering box

[SGallon]

I have discovered under the grime that the ally block that attaches to the chassis is in fact in 2 pieces so only the crud is holding the ball joint in there.
   Does anyone have any ideas on where I could get a replacement?
   
   I was told that there was a mod that improved the steering but no further details were given or was this my imagination?
   
   I would post pics to help show what I was talking about but don't know how!