dvx 400 rear axle rebuild need help asap
 

Ok so i have a 2006 dvx 400 and i was riding today and went to get of my dvx and i noticed it knock when i put all my wight on one side to get off not loud but it was there. I got back on and moved back and forth and the rear end is knocking. Its in the back right in the middle of the swing arm the bearing carrior im very new to arcticcat but i no somthings wrong. Do i need to buy just 2 new bearing if so ive been looking at a set of allballs but is this all i will need? any help would be apresheated.