Replacing wheel bearings

[matthewsquad]

Hello, i recently bought a 2004 yamaha yfm350 or it could be a 1987 Yamaha warrior 350 the guy said it was 1987 but when i looked up the vin it said it was a 2004. im trying to replace the rear wheel bearings and the person i bought it from already took it apart.
I bought this kit (the link at the buttom) and im trying to put it on but when i looked at the one that was already in it looked like there was a gap behind the wheel bearing i posted a pic, i was wondering is the gap suppose to be there? or is there suppose to be a spacer or something or is it supposed to be pushed in more? also what goes in first the wheel bearing or the seals or does the seal go after the wheel bearing??.. ??? i posted a pic.... is that how its suppose to be or is there suppose to be a spacer, or is it suppose to be pushed in more? also the one that is already in there im gonna replace..

link to the wheel bearings i got
(http://www.ebay.com/itm/371549131643?_trksid=p2060353.m2749.l2649&ssPageNa me=STRK%3AMEBIDX%3AIT)

 

[lbjamm]

Big seal, big bearing, tapered spacer, little bearing little seal. From inside out.

 

[matthewsquad]

Big seal, big bearing, tapered spacer, little bearing little seal. From inside out.

So.. There is suppose to be 2 bearings for the rear?? i thought it was 1 bearing for the left side and another for the right..... also do you know where i can buy the spacer for the wheel bearing???

 

[lbjamm]

My bad. Thought yo were doing the front. Lol. Seals are on the outside. Seal,bearing,spacer, bearing, seal.