The only part # we have is 9786819, power steering ,no ac ,2 groove. That info came from the firebird site, we are not sure it is correct. We have bee using the pulley measurement of the pulley sitting on a flat surface to the top surface to the top flange where the fan attaches should be2 7/16 high . this is based on pulley #9796060xf which means the pulley has to move out5/16 by shortening the height of the pulley cone.
