Front Axles

Hi I have a 92 full size bronco eddie bauer edition with roughly 211000 miles on it. I need to know how I find out what size and type of axle I have on the front because I'm told the passenger side axle is bent. This is because I just put in brand new superwinch manual locking hubs and whenever I engaged the 4x4 I would hear a grinding noise. When I pulled the hub apart just to look at it my hand was covered in powdery metal that fell out of the inside. I asked a friend of mine and he said it could be bent.

I've looked all over the repair manual and the truck manual that came with it and I get nothing. I don't see any pins or tags on the arms or anything showing what they would be. I really want to get this fixed and don't want to put in another hub just for it to be ground to shreds. Thanks for your time.