After getting the 02 engine swapped with an 06, Ive been noticing on and off weriod screech noises on the engine. The Serp belt was already replaced just to let you know. My friend thinks its has something to do with the alternator since the serp belt is a little off aligned with the idle pully (Barely noticable) and it never happend on the 02 engine before. Ive checked on other threads and could find any answers to this problem. My question is arent the 02 alternators the same as the 06 alternators when it goes to size?