8.8 swap
it might cost the same as putting a b body 8 3/4 in, but you will have a posi and a decent gear ratio in the 8.8
i started with an 8 1/4 went to a b body 8 3/4 for the width, and took that out for the explorer 8.8 just because i didnt want to spend the cash on a posi and gears, plus it has discs. so far so good behind a mild BB and t56.