I agree with uwe ,that is a one off job there ,pretty hacked together Id say.
Secondly though, do you like the high stance of the trailer? It will not be near
that high with the new axle and proper installation ,but it will be as original
when its done .Never weld on the axle tube as Andy says ,the rubber torsion
rods get destroyed by the red hot heat.You can bolt to the extension plate
with the new brackets ,the square tube will fit back in to that plate once
the old axle is removed of course. you will just have to see how things are
going to line up when you get the new one.you might be able to keep that height, if desired.
Scott of scottanlily