My 1974 360 Duster used what I believe they called a scaloped clutch, which basically had a 11 inch disc with a special pressure plate that bolted to the 10 1/2 inch pattern flywheel. The truck 360 used an 11 inch clutch and pressure plate, not the car. You should use the 10 1/2 inch pattern flywheel, and the correct bellhousing that goes with it. Then you can get either a special scalloped clutch, or the 10 1/2 inch clutch. Call Brewers, or look up his site , and he will get you the proper clutch for your needs !