Thanks for the quick response TechWrench. I'll have to check to see if mine was done or not. Although I doubt it. It looks like mine was the original tensioner installed. I just got a complete tensioner assembly from Advanced Auto and noticed that the bearing in that one to be bigger.
I recently pulled out the bearing for the tensioner on my 03 V6 4runner and it wasn't a 5203 bearing installed. The one installed was a 6203. I compared the 5203 and the 6203 together and the 5203 was a lot wider. If installed the belt would be slightly off. Does anyone else have this problem?