I had a look last night for the part number. I know spicer has charts with dimensions. I have managed to come down with a flu or cold or something. So my internet search fortitude is low. The tight spot could be a warped drum from possible heat. Noisy bearings typically announce themselves as a grainy growl when rolling the tire while elevated. I am sure you will get to the bottom of this. Please post up what happens and the fix.

And WELCOME!!!