Have you a serpentine belt diagram for a `88 Chevy 305 with AC? Thank you for your help!

SOURCE: serpentine belt diagram:

if yours has the 3.8L then here is the diagram. Hope this helps
~ Zach

SOURCE: serpentine belt diagram:

The belt routing diagram is located on the top radiator cross member by the hood latch. You should see it when you open the hood. If it is not there, all Chrysler, Dodge, and Plymouth minivans, from 1993 to at least 1999, used the same 3.3L engine setup, so find someone with one and look for the diagram where I described.

SOURCE: BELT DIAGRAM FOR 1984 CHEVY 305 CUBIC INCH

Hope this is what you needed.

SOURCE: SERPENTINE BELT DIAGRAM 4.3L 1990 S-10 BLAZER 4WD w/AC

Here ya go:

SOURCE: The diagram for the replacing the serpentine belt

Here you go.
Please let me know if this information is helpful. Positive feedback is appreciated. Thank You!