Actually for the smoothest installation he specifically needs the T-case
and shifter off of an '88, '89 or early 1990 (produced 11-89 or earlier)
there are atleast a dozen different distinctly identified T-case
shifters used on '82.5-87 Rangers and most of them won't fit.
IF you have an A4LD transmission any T-case/shifter combo off
of another A4LD '85 or later will bolt up without issue.
However because of subtle running changes I strongly recommend you get the pair off the same vehicle.
BTW, the two conductor "wiring harness" for the "4x4" and "Lo Range" lamps is a seperate harness that runs to it's own connector up next to the main harness firewall gromet.
Yes, your dashboard is already wirred for the 4x4 lights as ALL Rangers/Bronco2's are... But your instrument cluster may or may not have the lightbulbs installed in the cluster.
AD