NismoS13Chuki

Ok guys so. I adjust my ebrake so that it will only travel 6-8 clicks with a firm pull like the manufacturer represents. So seeing as the car will see some drifting i decided to try a lock the rear wheels by ripping the ebrake the wheels didnt lock. Just came to a slow stop. The rear pads are good and im pretty sure that the caliper is too. Also i get a weird grinding noise in reverse from the brakes and two hard clicks in forward while pressing the brakes after the car has been sitting for a while. Can anybody give me some help