How to tighten lower tension wire on a chain link fence

Just replaced the end post on an old chain link fence. The bottom wire was fastened with a "U" clamp. The kind you normally see on wire rope. How can I tighten the wire and refasten it? This fence is not close to home, so I need to have the tools I need before I go there.
Besides this, one of the posts in another part of the fence is broken. I'm thinking about cutting the post off at the ground, rounding out the hole, and putting a smaller pipe inside. This is because the post is set in cement, and it's right next to a tree stump and I think it would be next to impossible to get out. Is this a good idea?
Thanks, Al
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already installed at one end or the other of the wire, but if not, get one and install it at one end, and then use it to tighten the wire. You may need an extra tension band (the ring shaped clamp that fastens the fabric tension rod to the posts) to tie one end of the turnbuckle to the end post.
If the busted post is ok except for being broken at ground level, you can fix it this way: Cut the post at ground level. Get a couple pieces of rebar long enough to slide into the buried part of the post and stick up a couple of feet. Fill the buried post with mortar and insert the rebar. Slide the other part of the post over the rebar and fill it with mortar also, at least up to the top of the rebar. Brace the post plumb with some 2 by's until the motar sets if the top rails don't hold it plumb. You can also use this method with a new section of post if the top piece is too damaged to reuse.
HTH,
Paul
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Used a large channel lock pliers and a small hammer. Was easier than I thought.
Al
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