HM
|
Those triangular pieces are put in at the time the fence post is concreted in, so I don't think you have many options here.
The only feasible way I can see of fixing this problem is to get the old piece out (obviously), then put the new section in, in two pieces which are then fixed together with a mending plate or something. It's possible you might be able to use some sort of dowelling technique, and glue the wood back together (exterior glue obviously).
HM
|