Locking Hubs ?
The 44 is smaller diameter/The 50 files up the hole in the rim
here is aD44
<a href="http://s108.photobucket.com/albums/n29/diesel_brad/?action=view¤t=000_0535.jpg" target="_blank"><img src="http://i108.photobucket.com/albums/n29/diesel_brad/000_0535.jpg" border="0" alt="Photobucket"></a>
here is aD50
<a href="http://s108.photobucket.com/albums/n29/diesel_brad/?action=view¤t=000_0537.jpg" target="_blank"><img src="http://i108.photobucket.com/albums/n29/diesel_brad/000_0537.jpg" border="0" alt="Photobucket"></a>






