OK do not know how it is getting there but you have a good job on your hands, new shoes for a start, but half shaft needs removing and bearing off, not the best of tasks without a puller all this to renew the oil seal, and I would renew the bearing as well, oh and you might well end up replacing the brake pipe if it does not unscrew easy, usually the sleeve nut is rusted to the pipe, but you can remove the two bolts holding the cylinder to the back plate, then you can rotate the cylinder, as long as the two bolts do not shear, Rick