I'm just getting back into Legos and recieved the 10317 Defender kit for the holidays. I would rather it have white wheels (I don't mind painting) and found that there was a past model wheel that came in white. The only difference is the axle style. Instead of the cross pattern it looks more like a half cross. What is this pattern called? Is it compatible with the cross pattern? It looks like it could be.
Try giving LEGO a call. I called them earlier this year about an old set and trying to find out more info on 121/328. They were super friendly even though they could not shed any light on my question.