ACDelco Flywheel - 24243637 Part #: 24243637 Line: ACD ACDelco Flywheel 2 Year LIMITED WARRANTY Material: Steel Number Of Teeth: 157 Bolt Circle Diameter (mm): 260mm Bolt Circle Diameter (in): 10.230 Inch Flywheel Type: Single Mass Number Of Crankshaft Mounting Flange Bolt Holes: 6 Ring Gear Outside Diameter (in): 11.300 Inch Ring Gear Outside Diameter (mm): 287mm Show More Show Less