Steering box help and advice needed please I am stuck ,1965 V8 Valiant power steering

Let me get this straight-
You had a shop install a new steering box.
For some reason you think the old box had four bolts, but you were not the one who removed it or installed the new one. So how do you "know" it was four bolt?
All stock Mopar steering boxes (at least of the era we normally deal with here on FABO) are three bolt, no matter if they are power or manual.
And as stated by others previously, if it suddenly "would not steer", it has nothing to do with three bolt mounting (unless all three bolts are missing entirely). And what exactly does that mean, anyhow?