"Toller" wrote in message
...
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.

Tie a prussik around the bars, hook the other end on the jack and pull them out.

http://www.brmrg.net/knots/prussik.html

Bob