Here's a pic of mine with an aftermarket rearset of which I do not know the name. Even though the picture is slightly distorted due to an angle shot, the ball joint is actually in the 12 o'clock position on mine.
You may just need to pull it off and to a 180 with it.
Dana
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2016 Husqvarna 701SM
2021 Husqvarna FS450 supermoto
2014 Honda CRF250R supermoto
1995 NSR250r MC28