Part number (700100) is a steel 153 Tooth GM/Chevy flywheel for use with pre 1986 Engines with 2 piece rear main seals. It features a 153 tooth ring gear and weighs approximately 30Lbs. with a 12.75' diameter. Our steel flywheels are manufactured from billet steel. and caries a SFI 1.1 safety rating. They are CAD/CAM-designed and CNC-machined from billet steel for precise, no-hassle,bolt-in installation.
