So you have an adapter plate lined up for it? I wouldn't be worried about the tcase not holding the power, I think it'd be ok, but I would rather have a manual case than the TOD so there is less parts to fail just in case.
1999 Isuzu Vehicross-#1209- lots of mods - gone
1995 Honda Passport: Lifted, Locked, 34x10.50's, just a few things..-Click for build thread