smaller bolt pattern: (8) 3/8 holes on 9" bolt circle
larger bolt pattern: (12) 3/8 holes on 12-5/8 bolt circle
part is 1-1/2 overall thickness
2" x 10 Spline
Heavy Duty damper plate with eight cryo-treated springs and chrome moly backing plate. Built to withstand the extreme HP and torque of today’s high performance engines.