SunCoast CAT4 950+ HP Custom Allison Transmission w/ Converter (GMAX-CAT4-LBZ-0607-4WD) for 2006-2007 Duramax LBZ

SunCoast Diesel Performance builds transmission and drivetrain upgrades for diesel trucks. The company focuses on strength, durability, and torque handling. SunCoast diesel transmissions support towing, daily driving, and performance use. SunCoast designs torque converters, valve bodies, and transmission components. These parts help handle increased power and heavy loads. Stronger driveline parts improve reliability under stress. Diesel owners trust the brand for proven transmission solutions. These upgrades perform well in real-world driving conditions.