Front wheel bearing busted on my 04 z400 took the wheel off the hub then took the nut on the axle off 3 pieces fell out .There is what appears to be a spacer at the back of the hub or is that part of the bearing.The caliper bolts are stripped from trying to break them loose.So my question is is that a spacer and if it is can i just put a new bearing in or do I need to take the whole assembly off and get the caliper bolts out?Anyone have a diagram or a link to show a blow-up view of the front assembly?

 

There should be a washer but you will need to take the hub off to replace the bearings i believe there are 2 in the front hub if 1 faild the other is sure to follow.

 

I hope this link works.
wheel hub
you will have to click on what type of quad and then front wheel

 

Okay....

It goes like this:

Rear Spacer-->Rear Seal-->Rear Bearing-->Bearing Spacer-->Front Bearing-->Front Seal-->Front Spacer-->Washer-->Castle Nut-->Cotter Pin

Front Hub Assembly