Marco , Before you even think about Mag arms , let me know what colour , age , condition and track you are considering ! These are a Minefield , believe me , nothing is easy , everyone has a different set of problems , bearing carriers are different , the bearings are un obtainable and the arms are all now so old they have Magnesium cancer. Im not trying to put you off , believe me , i looked into this before i put steel arms on mine ( why i want my old ones back as spares ) . I know TAL are your mates , but even they cant give you new ones , the only way to be sure ! Cheers mate
Tony