Is there any way to adjust a slipping clutch? I have looked at that dealer service manual and there is only a peddle adjustment. There was a note in there that says that there are two different throw out bearing applications for the 71, a tall and a short one. The local GM dealer and parts store claim there is only one throw out bearing listed. Has anybody run into this problem before? Did the LT1 come with a heavy duty clutch? Any help will be greatly appreciated.