Physically? Yes, it will bolt up. edit: I should mention that the flanges might need to be swapped, but that's really easy.
However, gear ratios are different; automatics are geared lower (in other words, more revs for the same speed). Putting a diff from an auto in a manual results in faster, snappier acceleration at the expense of some increase in fuel consumption and (potentially) a loss of a few mph of top speed ... putting a diff from a manual car on an auto though ... not really recommended.