I hunted for a decent clutch unit but most were small 9 inch disc or the big 11 inch for the Astro vans. The big 11 inch won`t work well with the Wilcap adapters for the MoPar flat sixes. I did find a wholesale outfit that sells a conversion kit with the early Chev V-8 pressure plate ( standard 10.4 ) and a 1 inch 14 spline-NWC- 10 3/8 disc. Good strong unit for the six bangers. Your parts store will have to order it for you. Part# 04-054--phone# 1-800-528-6743 they can tell you what parts stores they cater to.