What all aftermarket parts should I buy to build my transmission?

I'm building my car to over 500whp and I've built the motor, but next I'm building the transmission. Other than a clutch Pivot ball (made of brass), a forged clutch fork, stronger clutch, forged shift selector and extender (for all gears), and stronger input shaft, what all else should I buy to make sure my transmission won't fail with a higher horsepower and torque?

Anonymous2017-03-07T14:15:53Z

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doctormcgoveran2017-03-07T10:56:02Z

don't put any stock parts in that tranny, get upgrade everything same on the rear end, one stock bearing failure one stock gear spits a tooth, and everything is ruined cases cracked shafts bent, stuff is gonna fail eventually and stock stuff one single piece and you have an expensive almost good transmission case full expensive stuff cracked and bent. blow proof bell housing is in order.

Joe2017-03-07T10:36:14Z

You didn't say what kind of car, so it's all just B.S.