I was replacing a leak at my tranny tail shaft and differential pinion.
After taking out my driveshaft, and now reinstalling it, my axles turn in different directions, so it's impossible to drive my car.
What did i do, i didnt take any gears out, its like something was put in backwards.

Are you saying when you turn one wheel in one direction, the other wheel turns the opposite direction? That's normal, and it's what an open differential (non-posi) does when it's free-wheeling with no load on the tires. That's also how you tell the difference between an open diff rearend, and a positraction. If your rear was a posi, both wheels would spin in the same direction, not opposite like yours is. Nothing's wrong, you can drive the car.

or possibly the driveshaft was put in upside down LoL j/k start it up and drive it

The worst that can happen is that the car will run into ever diminishing circles and disappear into its tailpipe. LOL. Just funning you, your car is OK.

Oh, a bunch of wise-guys, eh? :D

You guys should really cut that guy some slack. I thought it was funny to when I read it, but we shouldn't bag on the guy for asking a question. Obviously he don't know muchabout theposi/slip difs That's what this forum is all about right. Bunch of car/CAMARO CRAZY http://www.camaroforums.com/micons/m10.gifpeople helping each other out.

i guess if you did a burnoutit would sit still, look at it this way you dont have to powerbrake it anymore.