So I was at the pick'n pull today and found a good 2 gauge set of battery cables. And a 120 amp Dodge alternator that is a good match.... for a '90+
But I have an '89...
I picked it up anyway as it was in great condition and only 20 + core...

The '89 has the center of the bracket where it bolts vs. the reverse.
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1989 style

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1991 style

Does anyone know if that's just a mounting bracket?
Or are there other compatibility issues?