The only comment I can make here is they were not design to be bush hogs rotary cutters with swing arm bar blades. They were meant to cut personal lawns that were keep clear of things like large limbs, roots, and the likes. Even the AYP/Husqvarna and MTD spindles break sometimes from hitting tree roots here. There are mower decks with spindles that handle these impacts but even with those blade bars are bent and even those spindles can be broken. I know as a big commercial ZTR (zero turn rider) came in with a shattered cast iron spindle last year where the owner hit a 1-1/2 solid metal post.
As the deck rebuild if I understand correctly the Aussie equipment and part costs are much higher than ours in the US.
