Notes on parts: the 10 3/4 stock 49 clutch will fit the 11" flywheel.... I will be ordering a centerforce 11" coarse spline clutch. Standard GM parts for throw out bearing and clutch. Pilot bushing is buick/gm part : BCA Bearing Pilot Bearings PB656HD problem: balancing... I need to balance match my flexplate to my flywheel.