Today i was driving my warrior like any normal day, and the rear end started moving around then it started to make a sort of squeeling/scratiching noise. so is this the wheel bearing or a more serious problem?

 

either brake or bearings... if u rock it side to side can u hear it clicking?

 

I would say it is the axle bearings. These bearings take a lot of abuse and I've never had a Warrior that didn't eat these bearings up pretty bad. I have always replaced the bearing carrier with a dual row billett aluminum carrier because I usually ruin the old carrier when trying to get out the old bearing races anyway.