[MR2] MKIIT Belt part numbers

[Karl Heller]

I'm looking to replace my alternator and AC belts. When I search  
around the Internet for the part numbers I find these:

0916-02365-78  AC Belt

90916-02341-83 Alternator Belt no PS

I called up my local Toyota shop and given my VIN (93 MR2 Turbo With  
Power steering and LSD) They give me a completely different Alt belt  
number, something like 70830 that takes power steering.  Now, given  
that the Turbo doesn't have PS like a typical car, I wonder if they  
are ordering the wrong part.

Can anyone clear up this confusion for me?

Thanks!

Karl