The mechanic changed the rear brake shoes 4 months ago and they are driving me crazy with the squealling. I've blown the dust out, I've hosed the dust out and I,ve taken the drums off and sanded the drums and the shoes (twice). Seems to be successful for a few days or so and then they start again. Reading other post on KC I read that I should brake hard half a dozen times doing about 80 kms. Again works for maybe a day. Spoke to the mechanic and he said they were fine, was raining the day he looked at them and they didn't squeal. Also said they are too thin machine and I now should replace the drums. I feel that they didn't squeal before I had the shoes replaced and if it was the drums causing them to squeal they would have before. I'm thinking of putting a few crosses on the shoes with a hacksaw. I have to do something, they're driving me mad!!!! Any advise.