So after completing a rear end refurb, first drive I had a few teething problems, managed to sort them all except one; both rear wheels are making an awful squeak/squeal when moving slowly, under 30 mph it's very loud! Gear/braking/engaging handbrake don't make any difference to it. Backing plates were initially touching the discs but I bent them back, need to see if I bent them far enough but pretty sure I did. Literally everything is brand new except the discs, pads and shoes which in hindsight I should have replaced however they were less than 500 miles on them when the car went off the road. Anyone had something similar?