2001-2010 Duramax LB7/LLY/LBZ/LMM PPE Pressure Calibration Kit (128041000)
Build a stronger Allison 1000 with this spring kit, a smart upgrade for both 5-speed and 6-speed transmissions. It’s highly recommended for trucks that tow heavy loads or make big horsepower, where the factory setup can struggle to keep up. Increased line pressure improves clutch holding capacity to help prevent slipping, while recalibrated springs firm up gear changes for quicker, crisper shifts.
- Increases line pressure
- Improved clutch holding ability
- Promotes tighter shifts
GM Duramax
2001-2010 LB7/LLY/LBZ/LMM
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