I am trying to create a hyper-light SBR4, and for the most part, succeeding. Or so i thought. I take a couple test runs and then realize that, rarely, seemingly randomly, my driveshaft would snap like a toothpick. As more testing went on, this problem became more and more frequent, and is now basically guaranteed. Sometimes it happens at about 80mph, sometimes I cant even get off the line. Any ideas on how to preserve this thing so i can get back to 311mph on straights?