Hey guys I think I might have figured out the cause of the leak. The reservoir was leaking at two of the crimp spots, closest to the left (passenger) side. I replaced the belt with a toyota brand belt, but I'm thinking it is too short causing reservoir to not be horizontal (level with engine).

This I believe is the cause of the leak...the reservoir is tilted to the left so it leaks from the left side because it is overfilled (because its not horizontal).

Can anyone confirm on your V6.....that the reservoir should rest horizontal with engine, not tilted to the left like mine is. ? I'll try to reloosen belt tensioner (& 14mm at block) and try to get reservoir more level.
Thanks for any help !!!