The brake disc is secured with the wheel in place using the wheel mounting nuts. When the wheel is removed, the disc is held in place with two screws (M8x1.25 mm). After unscrewing these screws, the disc should be removed without distorting the wheel hub.
Disconnecting the upper and lower suspension arms
When performing work, do not remove the nut completely from the ball joint. To avoid damage to the parts, use a suitable puller (for example, as shown in Fig. M2 5.007).
(The text of the article was obtained from the website: MitsubishiMan)
Install the puller and, by turning the bolt, disconnect the upper and lower suspension arms.