Whenever i use my ebrake, which can sometimes be a bit. hehe my back brakes grind afterwards whenever i use them normally. and this reduces stopping power significantly; is it just my abs doing this, its makes things even worse in the winter. i used to think it was my front cause it was doing it all the time.but i had an accident and had to have one of my rear hubs replaced and now it only does it fter the forementioned process.

 

Sounds like you've either got a caliper sticking or the e-brake cable is sticking, causing the caliper to stick in position and slowly let out.