Are you sure those are the right ones? I don't think I've ever seen an Aus 240 with ATE rear calipers, we always seem to get the Girling calipers, which have different-looking pins. The ones I always see look like this: https://www.classicswede.co.uk/Girling_rear_brake_caliper_pin_set/p1733344_20381095.aspx