Heavy-Duty Brake Kits for 2001-2010 Chevy/GMC 2500HD/3500HD 6.6L Duramax

LB7, LLY, LBZ & LMM Duramax Brakes: 2001–2010 Chevy/GMC 2500HD & 3500HD

Severe-Duty Brake Parts for the Original Duramax Lineup

The first decade of Duramax production, LB7 (2001–2004), LLY (2004.5–2005), LBZ (2006–2007), and LMM (2007.5–2010), covers trucks that are now 15 to 25 years old and still working. Whether it's a fleet vehicle that's been maintained on a schedule or a private rig that's been driven hard, brake hardware at this age is often well past its useful service life. Older trucks in demanding service call for rotors with more thermal mass and pads with compounds suited for the kind of heat cycles that come with age-related brake imbalance, heavy loads, and inconsistent maintenance history. We stock severe-duty rotor and pad options alongside standard replacement parts: the right choice depends on what the truck is doing and what condition the rest of the brake system is in.

Four Engine Variants, One Platform — Fitment Sorted for You

The LB7 through LMM trucks span two GM HD platforms (GMT800 and early GMT900), and brake fitment varies by year and body style. Shopping for an early LB7 is not the same as shopping for an LMM; caliper brackets, rotor dimensions, and hardware specs differ across the production run. Our catalog is organized by year and engine code, so you're not cross-referencing compatibility charts.

High-Carbon and Drilled/Slotted Options Available

For trucks in severe-duty or fleet service, high-carbon rotors offer better heat absorption and longer service life than standard cast iron. Drilled and slotted options are available for owners who want improved thermal performance and consistent pad bite across a wide temperature range.

Compatible Applications

• 2001–2004 Silverado/Sierra 2500HD/3500HD 6.6L LB7 Duramax
• 2004.5–2005 Silverado/Sierra 2500HD/3500HD 6.6L LLY Duramax
• 2006–2007 Silverado/Sierra 2500HD/3500HD 6.6L LBZ Duramax
• 2007.5–2010 Silverado/Sierra 2500HD/3500HD 6.6L LMM Duramax