1969 1750 Spider Veloce (Euro)
I ordered a front suspension ball joint kit from Classic Alfa (UK) for my '69 1750 Spider (euro). It's a 105 series kit that comes with a pair of lower ball joints, castor arm ball joints, and upper control arms. After seeing that the wheel camber was much too positive, we discovered that the replacement upper control arms were about 5mm longer than the original ones (see pic below). Classic Alfa was very puzzled. Does anyone have a logical explanation for why my car's arms are shorter than what was expected?