I think a 36mm socket is unnecessary for the track. Unless you plan on changing the oil there.
But if you DO get a 36mm socket...I think most rear axle nuts are 12pt 36mm...might want to get one that will remove the spindle nut whenever you need to do rear axle/wheel bearing work.
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2018 F30 320iX Melbourne Red
2011 E90 M3 Monte Carlo Blue
2004 E46 M3 Imola Red
2000 E36/7 Z3 Steel Blue
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