Im pretty sure I would have known if my angle gear got destroyed....It will spin all 4 if I try to spin them but if I get a good launch it will spin the fronts first. My Talon that makes about the same power I can launch way harder because the bias is just way more equal. Its probably a good thing that the viscous is weak because it does take pressure off the angle gear but just not as good for times. I did get it cryo treated but who knows how much that helps.