Ina tracker/kicker you don't have to remove the brake lines and backing plate.
that was my experience also.
you should goop the bearing cap to seal it to the backing plate.
if you pop a spring off one of your brake shoes it may be easier to get the bearing cap past the brake gear. if the backing plate loosens mabe consider regooping that also.
i used a slide hammer type arrangement. a little tough to pop the axles out.
i pulled them and replaced the outer seals(never saw any inner seals?)
the lunch box is a little weird on the road, but effective off.