- Upgraded hydroboost brake booster
- Stiffer pedal
- Push rod pre-drilled for brake light switch
Fits: 2001-2011 Chevy & GMC 2500 & 3500 applications with the 6.6l LB7 LLY LBZ or LMM Duramax. Also found in some Gas applications such as 8.1l Trucks & Suburban's.