Blessed Performance has the PPE GM 1000-2000-2400 Series Allison Transmission Stage5 Transmission Upgrade Kit for 2006-2010 LLY/LBZ/LMM Duramax trucks.
Built to handle sled pulling, drag racing, and everyday driving, the PPE Stage5 Transmission Kit is one of the strongest transmission upgrade kits that PPE offers. Thanks to the triple clutch converter, valve body recalibration kit (recalibration kit does not change shift points, only increases clutch holding power), converter flow valve, and upgraded C1, C2, C3 and C4 clutches and Kolene steels.
NOTE: Torque Converter sold separately