I am looking at buying a set of a-arms for a custom buggy I am building. I am trying to figure out if the a-arms from a the 525 outlaw will be strong enough. I need to know what kind of metal these a-arms are made out of so I can run an analysis on them. Does anyone know what kind of steel these a-arms are made out of? The SKU is 1015697-385 for the upper and 1015075-385 and for the lower arm if that helps. Any insight would be greatly appreciated.