could always get another Arrma granite and get RPM A-arms lol, i do think it quite strange as throughout my year and a half-two year abuse of the Exceed infinitive, i never broke an A-Arm. hub carrier once (trees hurt lol).
when mine was running i didnt really have many issues, i got the Exceed Infinitive Brushless (was back when brushless was really new) and it took a good bit of abuse for a time. then took a decent launch and came down on the back left tire and was about game over for it. snapped the chassis...