Time to tear it down then, it's hurt. You're going to need an input shaft, cluster gear and some bearings at bare minimum. Nobody can tell you when it will go....but if you keep driving it hard, it *will* go. And when it does, it'll be ugly and expensive. At your power level, you need a pump setup to keep the t56 gear set alive.

 

[QUOTE=necrocannibal;19441100]Yes it goes away in fourth. I really just want to know if it is a ticking time bomb about to blow up or if it is just an annoyance with the whining.[/QUOTE It's just an annoyance, it won't blow up. The reason it goes away in 4th is because 4th isn't actually a gear. It's just a direct drive between the motor and rear end....no actual gear reduction. ]