Use a 4"-5" angle grinder with a grinding wheel. I have a 5" 8 amp
angle grinder that would cut each one flush with the rock in less than
a minute per bar. Just cut a groove on 180 degrees or more and bend it
over. Similar to felling a tree. No chain, no jack, no pulling.
Once it's off, grind off any sharp edges and move to the next.

On Fri, 01 Sep 2006 01:35:45 GMT, "Toller" wrote:

I have to replace some low retaining walls. The wood is easy because its
all rotted away, but I can't get the rebar that held them out. The ground
is shale, and doesn't want to give them up.

Any magical solutions? I thought of an auto jack, but don't see how to grip
the bars.
Driving them in rather than reusing them is a solution, but driving them a
foot into shale is a real chore!