Eldgenb,
Don't confuse the Viscous Coupler with the Center Differential. He simply removed the VC, which, for example, 91-92's never had in the first place. (Other than that the transfer cases are supposedly identical.) He still has AWD, the center diff, and the ability to lock it. Anything like the "7-pin mod" or whatever it is (sorry, that doesn't apply to us 91-92'ers

) should work exactly as before. In fact (and I might catch crap for saying this, but...) I doubt most 93-97 folks would even notice if their VC went AWOL (not seized, just removed) other than a little more driveline clunkiness.
Curtis
91FJ80
P.S. Got any more pic's of the pup in your avatar? My wife finds him irresistable.