Trying to install a used supercharger on a mutt of an engine is a more difficult than I thought. My engine is a 1999 GT block & heads with a 2002 timing cover, the supercharger brackets were also ment for a 2001+ so some of the bolts and bolt holes weren't exactly the right size, some parts seemed to be missing as well. After a lot trial and error Mike @ L&M Engines helped me out by making custom spacers and getting the little odds and ends figured out.