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BD's exchange valve body for 2004-2006 Duramax LLY with Allison 1000 is a modified, tuned and tested assembly built for towing and high-load use. The valve body increases line pressure and clutch apply via new trim valves, uses hand-lapped surfaces to prevent leakage and incorporates upgrades that raise clutch holding capacity to improve shift quality and reduce wear during demanding service.
BD Diesel Valve Body - 2004-2006 Duramax LLY Allison 1000
