Part Description
For Pro-Clutch on 1990-1997 Evo Big TwinKit contains 9 friction plates, a .120" thick steel drive plate, 6 or 7 pcs. .047" thick steel drive plates, and 2 or 3 pcs. .080" thick steel drive plates to achieve a correct pack height. The .120" thick plate is not used on early style Pro Clutches., .047" thick steel drive plate
Text excerpt from the catalog:
Over the years Primo/Rivera have changed the construction of stock replacement Pro-Clutches. The early style Pro-Clutch had a clutch hub with integrated steel rear plate, the late style Pro-Clutch have a hub and separate rear plate. Please note that Pro-Clutches used for stock replacement and the Pro-Clutch as supplied with a Primo belt drive are NOT the same!
