ATI Damper - Trailblazer SS/Truck Spacing

Why The Super Damper? Crankshafts and flexplate failure, bolts loosening, timing chains breaking, valve train and erratic ignition problems are all indicators of a deadly disease common to internal combustion engines know as "Crankshaft Torsional Vibration."  High frequency vibrations, when left unchecked by aluminum hubs or non-functioning dampers, have actually caused cranks to break. The solution?  ATI Torsional Super Damper -- the unconventional, unbonded elastomer Super Damper that is actually 2 dampers in 1 diameter! The ATI Super Damper, U.S. Patent #5,425,287, is the only damper designed exclusively for high RPM performance engines.  The proven elastomer design is actually two dampers in one: a 4" diameter and a 7" diameter damper contained in 2 shells that bolt to the crank hub.  ATI Dampers exceed SFI 18.1 specs. Features:

• Engine Balance: Internal
• SFI Rating: SFI 18.1
• Degree Markings: Yes
• Degree Marking Range: 360
• Outside Diameter (in.): 7.425
• Groove Quantity: 6
• Keyway Quantity: One
• Harmonic Balancer Material: Steel
• Harmonic Balancer Construction: Elastomer
• Harmonic Balancer Color: Black zinc chromate
• Mounting Hardware Included: Yes
• Quantity: Sold individually