You and @AJ/FormS have got me worried ! I need to drive home afterwards! Appreciate the 904 isn’t an AX gearbox, but took that it’s pretty robust. My engine parts are all pretty high-end - only things that are stock are crank and connecting rods. Diff and rear end is brand new Quick Performance 3.50. How high is chance of failure? Should I be concerned?
I wasn't implying the trans and rear end ain't strong enough, or even if you need deeper gears, guess a few races will tell. Was just guesstimating your hp at those rpms you'll spend most of your time at.