2011-2025 Duramax 2.0" Rear Block Kit (HP10505)

Fits

Need more rear lift and better control under load? Pacbrake’s 2.0" Rear Block Kit is made for trucks that earn their keep. Designed for strength, stability, and a smoother towing experience, these cast iron blocks and heavy-duty U-bolts are a serious upgrade from factory hardware.

Part Number: HP10505

• Solid cast iron blocks built to outlast the truck
  
• Grade 10.9 U-bolts with Geomet coating
  
• Zinc-plated flange nuts resist corrosion
  
• All components engineered for harsh road and weather conditions
  
• No cutting or mods required
  
• Supports up to 35" tires

Click here for instructions.

• Will not fit Cab & Chassis or dual rear wheel (DRW) models
  
• Not compatible with trucks without AUX/Overload springs