Please shoot me an e-mail ([email protected]) so I can help figure out what the issue might be. I would need to see a photo of the actual uptop you have since I have offered more than one roadster uptop. I can also provide measurements off of the master and double check the current castings left to make sure there were no anomalies with the molds now that they are older and near the end of the line. I check this with all of my molds but sometimes a change is so slight over time that you overlook it.