here you go,
the top ones are 2wd and the bottoms 4x4, you can see the flat bowl in the top is bigger on the 4x4 ones
<img src=http://img2.photobucket.com/albums/v11/darren.cudd/2wd.jpg>
<img src=http://img2.photobucket.com/albums/v11/darren.cudd/4wd.jpg>