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Reliable Cooling for LB7 and LLY Duramax

Are you dealing with messy transmission fluid leaks on your 2001-2005 GM Duramax? The Fleece Performance Allison Transmission Cooler Lines are the industry-standard solution for replacing factory lines that have become brittle or developed leaks. Designed specifically for the LB7 and LLY 6.6L engines, these heavy-duty lines provide superior flow and long-term reliability for your truck's Allison transmission.

Why Choose Fleece Performance?

• High-Flow Architecture: Ensures efficient fluid cooling to prevent transmission overheating.
• Rugged Durability: Built to withstand the harsh environment under your truck, resisting corrosion and pressure spikes.
• Complete Kit: Includes everything needed to get the job done right the first time, saving you time and frustration.
• Vehicle Specific: Precision fit for 2001-2004/05 Chevrolet Silverado and GMC Sierra 2500/3500 HD models.

Transmission health is critical for the longevity of your Duramax engine. By replacing your aging factory lines with this high-quality kit, you are protecting your transmission from the risks associated with fluid loss and overheating. Installation is straightforward, allowing you to get back on the road with total confidence. Trust your truck's maintenance to the experts at GGCRACING.