So i plan to upgrade basically everything on my Chimera to a 7075rc part except the A-arms. The only reason for this is my fear of the 7075rc arms getting bent and/or bending breaking another part. I would have the 7075rc diff cases and chassis but not sure how well things would hold up. I am a basher and am not afraid to hit some big jumps which sometimes results in some pretty gnarly cart wheels. The plastic ones would leave a breaking point and the plastic arms are cheap and stocked locally. BUT if all 7075rc makes the chimera semi run over proof then i could be swayed. I know 7075 alloy is extremely tough i just fear my cart wheels are tougher.