From its characteristic shape, it seems that the seal (packing) inside the free hub is predicted, although the dimensions were doubtful but purchased like a pillar. B dimension 88 mm in the figure may cause misunderstanding, actual size B dimension 80 mm, maximum diagonal diameter 90 mm. By the way, size A (inside dimension) is correct. Mitsubishi Jeep's option setting agreed with AISIN manual freehub seal. It may also match other free hubs for Pajero and Delica. As Mitsubishi genuine parts now it is impossible to purchase the seal only (free hub body / right and left set items treated = expensive) thank you. I think that it is useful as a stock for the future because it is complicated and my own making is troublesome.