On Sat, 02 Aug 2014 07:54:22 -0600, Brewster wrote:

On 7/27/14 7:42 PM, Morgans wrote:
I have used an 8 foot 4x4 and a chain with good results. Put the chain
around the 4x4 about a foot up from the end, then wrap double around the
post, and link them both tightly together. Lift up on the 4x4. To get
another bite lower, just lower the 4x4, slide the chain down the post,
and it will grab again when you lift again.

Old trick is to tie the chain to the bumper and bottom edge of the post.
Place an old car rim (no tire) as close to the post as possible and
drape the chain over the rim. As you pull forward with the vehicle, the
car rim acts as a pulley and pulls straight up on the post.

A 2x, placed at a 45-degree angle from the post down to the ground
does the same thing. It has to be blocked at the top and the bottom
has to be braced against the ground, though. The jack sounds a lot
easier, though.