Citroen 2cv special tools. How to check a rear suspension arm

2cvtools.com makes specialist tools for the Citroen 2cv and its derivatives. The website also shows videos of the tools in action. There are many tools for all aspects of repair for these vehicles and other Citroen models. I am told that rear nearside suspension arms that were made in Portugal are wearing out tyres. Apparently, these arms have been manufactured incorrectly. The rear offside arms are made correctly. The bearing stub shaft must be welded in the wrong position causing a wrong camber and/or wrong toe in/out. There is only one way to check this.