Toyota Repair: toyota camry sv21 91 model, camry 91, intake hoses

Question
hi i own an automatic 4 cyl camry 91 sv21 its done something ridiculous like 310k kms but motor seems good still,since purchasing it i have repaired a lot of things on it but it has been running well up until i noticed my alternator belt had deteriorated badly, after replacing it my cars revs are really irregular, while its idling it nearly stalls. However when you drive it holds revs steady, it almost feels like spark plugs or leads, but how can that be when it happened straight after i changed the alternator belt could it b related in anyway at all? could the belt b too tight? also i changed brake pads and during the process and noticed the rotor was wobbly, turns out it has to do with the bearings, should i need to replace whole wheel hub or just the bearings?? heeelp this is driving me mental

Answer
Always replace the bearing and hub together. Not sure how  replacing an alternator belt can cause this problem , recheck to make sure a wire connector in the front wasn't disconnected and left off, also make sure the air intake hoses between the air filter and throttle body are not cracked.