Alternator bracket out of a 99 Camaro 3.8l. It may be available in other vehicles, but Rockauto has conflicting information on it. (optional on 97-98 Grand Prix)
Now a 97-98 Grand Prix alternator bracket will work, but the coolant elbow that goes into the timing cover is cast into the bracket so it can break the timing cover on removal. This is the 97-98 Grand Prix bracket:
Here's what it can do:
Here's the Camaro bracket:
Pay attention to the heater hose angles, they can be 180* or 90* make sure you get the same angle you currently have (180*). Not all of the fittings bolt on the same way, as you can see in my picture of the installed bracket:
