Parking Brake Cable removal - 87 5KTQW

[Steve S]

I am trying to remove/replace the parking brake cables on this avant, 
and am stuck trying to get the front most cable free.  This is where the 
cable body fits into a sheet metal bracket welded to the frame. There 
are two holes thru which the cables go.   Somehow they are fastened to 
that bracket, and I have not seen how to release them so that I can 
replace them.

It appears to me (even after washing off much mud/dirt) that the sheet 
metal backet just forms around a groove in the metal  end of the cable.  
Is that right, do I just bend back the sheet metal to free this end of 
the cable?  Or is there a clip of some sort that keeps the cable from 
pulling out of this bracket?

Thanks.  (any other tips for replacing these cables appreciated too)

Steve