Hello! I am trying to install an additional alternator in my son's 1997 GMC Suburban (V8 5.7L). He currently has an ad244 350 high output alternator in it, but wants to add a second ad244 350 amp alt. I have seen a few companies selling dual alternator bracket for $500 plus. IMHO thats seems pricey.

So my question is, does anyone know of a machine shop that can build one or know where to get some schematics. thx in advance!