My front drive shaft turns in the opposite direction as my rear. So by flipping the rear pinion over, and using reverse cut gears, it's a done deal.

I know exactly what you're talking about, that's why I'd have to reverse the rear 3rd member to use it in the front of my truck.

But, if you end up flipping a toyota front axle backwards to get the driveshaft on the correct side for the X, then you'd have to flip the 3rd member upside down to get the rotation correct again.

Sounds like your thinking, which is good. Refreshing to discuss something with someone that does that.

But trust me, I know my truck. Using a flipped rear 3rd member on my front axle is commonplace. Thus the readily available supply of reverse cut gears. And you're correct there, the reverse cut doesn't mean it rotates in the opposite direction. Just gives a stronger side to drive forwards on.