Help please axle seal leaking

[Tonkin2000GT]

So I have a 2000 grand prix gt but now it's a gtp but anyways I changed a driver's side axle because it was bad and now it's leaking tranny fluid out of the seal where the axle goes in. I didn't change the seal because it wasn't leaking befor well Im trying to look up the seal and I can't seem to find one at advanced auto for the drivers side just the right side the output shafts side are these the same seal? How bad are they to change anyone done it? It's just leaking enough to leak like after I park it leaks a couple drops let me now advice is much appreciated.

 

[99GT2dr]

Not the same seal, hardest part of replacing it is pulling the axle. I put a thin layer of rtv around the outer lip of the seal (that contacts the trans case), maybe not necessary but just a habit, I do this on every seal I install.
http://www.autopartswarehouse.com/shop_parts/output_shaft_bearing/pontiac/grand_prix.html

That should be the seal you need.