Both Michael and Jezeric are correct , the company that made this supercharger are no longer in business , and they are very rare to come across.They were made for the 2.8 block for s-10 trucks back in the late 80's , early 90's. They are nothing like the alpine superchargers as those are a different engine altogether. Although you probably could find something that would fit with a lot of fabrication. I did a lot of searching about what could fit , then going into forums on camaros and other 3.4 engine applications to see what would increase power.

1996 Jeep Grand Cherokee 5.2 with mods.Hughes Air gap intake , 52MM TB , ford injectors, 2 3/4" lift, Doug Thorley headers , HID headlights with LED , HID fog lights , glow gauges , a few others