  We use topological surgery in dimension four to give sufficient conditions
for the zero framed surgery manifold of a 3-component link to be homology
cobordant to the 3-torus, which arises from zero framed surgery on the
Borromean rings, via a topological homology cobordism preserving the homotopy
classes of the meridians. This enables us to give new examples of 3-component
links with unknotted components and vanishing pairwise linking numbers, such
that any two of these links have homology cobordant zero surgeries in the above
sense, but the zero surgery manifolds are not homeomorphic. Moreover the links
are not concordant to one another, and in fact they can be chosen to be height
n but not height n+1 symmetric grope concordant, for each n which is at least
three.
