I did my TBU over a year ago and ever since I had this rattling over bumps. Finally narrowed it down to my Tundra brake shoes after hitting everything with a mallet. The spring that pushes the shoes apart doesn't seem to hold them tight enough so over bumps, the shoes just rattle. Has anyone else had this issue and come up with a solution. I'm wondering if its just the brand that I purchased (I think I got mine as a reman kit on ebay).