That is basically it. If you want stock Toyota the h55f is the tranny you want. You might check into a Chevy/New Venture NV4500 I think info on adapters can be found at http://www.tpilandcruiser.com Again, driveshaft changes will be necessary.
I have an H55F with the t-case for sale. It will bolt right up to the bellhousing. Since it is an '83, if you got a new H55, I don't think you could use that case, you'd at least have to plug one oil galley thing and do something else (I forgot) to get the 5th gear oiled.
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