Here are the pictures of the offending arm alongside an old one for comparison.
Apologies for the picture quality, however it can be seen that the ARB mounting is not central, and the spigot in the spring cup is too close to the centre of the arm, meaning it is riding up on the radius of the cup.
Also it was not possible to fit the isolator while it was attached to the spring, hence the isolator being fitted on it's own.
I'm hoping this is a batch issue, and not a common denominator, as I'm not prepared to fit these to my car.
Brian
