Who is running this alternator? Does it bolt right in to the stock bracket? I have an 88. As far as the adaptor wire I need, I think I need part number 8078 or 12102921 since I don't have a battery warning light. I called my GM dealer and he said 12102921 was an invalad number, and www.gmpartsdirect.com told me the same thing. Anyone have some input on this? Thanks!