Abs

I have a 2002 Explorer Sport and had one hub replaced this past winter due to a faulty speed sensor. The ABS kicked in during every stop but this went away after the hub was replaced. Recently the ABS is starting to kick in when stopping but only during a sharp left turn (eg into a parking space). Any ideas why it would do this only under these circumstances? I hope it doesn't require another new hub. Is this a common problem with these vehicles?

Thanks