3/4 intermediate coupling HELP

[davidc22]

I have searched and searched and found lots but no real answer. most posts were a bit old. I have a 71 GMC C15 and am rebuilding the steering from wheel to box. The intermediate coupling [housing] has over the years been beat with hammers to a point where I'm not sure if it can be properly be used. for the life of me I can't understand why I can not find this part as the 1" spline is widely available both as a rebuild kit and by it's self. I am hoping someone can direct me to a source or as a good used one they could part with [this is the coupling that attaxches to the column not the steering box]. Thanks