Make sure your new clutch isn't made for a 0.825 inch step flywheel, and the flywheel happens to be maunfactured/machined with a .900 inch step. I often see this in Subaru as a cause for new clutch slipping problems and/or clutches that are weak and only last a short while. There is one in my shop right now. The guy bought it cheap because of short-weak clutch life over and over. Wrong clutch for the flywheel. 0.075 inch makes a world of difference in pressure plate compression. I believe it is possible that people are comparing the old clutches to the new ones and if it is the same then they are installing another wrong clutch. I think a simple solution to this would be for the manufacturer to stamp the clutches with the step depth. virginian97@yahoo.com
