Ok so I'm guessing to remove the lower balljoint from the hub correctly, first you part the hub from the lower plate by removing the three 13mm bolts first. I assume this would then expose the nut to properly remove the balljoint connection. I don't actually want to remove this but want to part the hub so I can do the swivel bearings. Issue is one of the three 13mm bolts (one at the back) isn't playing ball. I was considering tackling the lower BJ to split the hub away from the drive shaft rather than destroy the 13mm nut. With the swivel hub in place it looks difficult to get a proper BJ splitter in there and it's a spanner job for the 18mm nut without counter holding. Any advice? Pesky bi-hex 13mm spanner has chewed up the nut. Other option is to try and knock on a 12mm or 1/2" inspire