2001-2005 Duramax HD Main Stud Kit (MSK667Y)

If modifications and high horsepower are your main goal, then you're probably considering main studs! These studs hold the bottom end together clamping the crank in place, this provides you with increased stability, precise torque application, and effectively prevents distortion under high loads.

Part Number: MSK667Y

• Improved Strength over Factory
  
• More precise torque application
• Will not twist during tightening
• Clamps the crankshaft in place
• More consistent clamping force
• Increased stability and prevents distortion under high loads

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