Allison Exchange Valve Body Chevy/GMC 2001-2004 Duramax 6.6L LB7 BD Diesel Electronic Performance Upgrades 9L block as long as

9L block as long as a 6

all you have to do is measure with calipers across the nozzle tip

Part Number: FPE-CLNTBYPS-CR-ORING-KIT

Part Number: 230-2901

returning fuel to the fuel tank

Allison Exchange Valve Body Chevy/GMC 2001-2004 Duramax 6.6L LB7 BD Diesel Electronic Performance Upgrades 9L block as long asBD's exchange valve bodies are modified, tuned and tested to provide optimum performance in towing and performance applications. The end result is improved shift quality, increased clutch holding capacity, reduced wear and extended Tranmission life. Install Time: 3 Hours Warranty: Parts 12 Months 24,000 Miles Labor 12 Months 24,000 miles Emissions: This product does not require an EO in California. By nature of its design, it is legal for sale and use