I disassembled my IE plate on the drivers side, as on the passenger side, the supplied washers had deformed, disentergrated, disappeared…
The sign is a "clunk" in the front end. The washers supplied are not up to the task, which is isolating the upper strut mount from the top spring hat so it can pivot, turn etc. Also on the drivers side the top ledge of the strut insert piston had started beating thru the upper spring hat, as it had on the pass side. You must use one of the stock washers as Robert mentioned between the upper spring hat and the top strut mount. I am getting some washers cut from a stock spacer that will be twice as thich as the supplied washers, hopefully that will solve my problem.
Fiat Abarth Driver