FW: Speedometer cable-two piece to one piece conversion

[shoemakersp]

Hello all,
  Concerned vehicle here is my 84 CGT with a two piece speedo cable.  The
upper one adapted a split personality on the way home from work the other
day.  Now with flaky tachometer, no odo and a now non-existent speedometer I
guess I will have to use the oil temp to judge my speed.  I checked the
archive and found mention that the one piece was swapped in in lieu of the
OXS box.  This is what I would like to do, just wondering if there are any
circuit that need to be tricked or can I just remove the OXS box with no
demon creation.  Thanks for your help.
-Sean Shoemaker

84 CGT "flying blind"
87 5KTQ Avant
01 Dodge Dakota FS