Thanks for posting this. In an earlier post I noted that my ‘65 Dart measured 3/16” shorter on the right side versus the left between the spring mounts. I only discovered this when I tried to use a fixture I had built to replace a section of sub-frame rail on the left on the right side. At first I thought I had made a serious mistake, but after checking, found out it was wrong from the factory on the right side. I had planned on making some kind of shim to go under the perch to correct this, but wasn’t sure that would be ok. Sounds like it is. Thanks again for posting this.
