Hey Bob - I'd ask them why the t-case is out. At minimum, expect to replace/rebuild it. Generally one doesn't pull a major component unless it needs something to function. By the same token, if the deal is a good one (i.e. way below book) and you factor in what it would cost to do a full restore to make it driveable again, it could be a good deal.
Also, driveable or not, it should start and run. You should be able to shift the gears in the tranny. You should be able to manually move the pinion in both axles to make sure the wheels turn and nothing clicks. You should be able to test all electrical components. That should eliminate a lot of the guess work even with the t-case out.
Also, driveable or not, it should start and run. You should be able to shift the gears in the tranny. You should be able to manually move the pinion in both axles to make sure the wheels turn and nothing clicks. You should be able to test all electrical components. That should eliminate a lot of the guess work even with the t-case out.