2001-2004 Duramax LB7 Allison 1000 Transmission Stage 4 4WD (1064704) 2020 - 2022 Ford Exterior Power-Boosting Potential: Customers have reported

Power-Boosting Potential: Customers have reported 10–12 HP gains when switching from 60 lb springs to our beehives

The first and only intake manifold mounted grid heater that meets the Cummins spec for heating element support

500 RPM with mild-to-moderate cam profiles and stock-size valves

Sold as a matched set of nozzles

They have increased the thickness of the shaft from 6

2001-2004 Duramax LB7 Allison 1000 Transmission Stage 4 4WD (1064704) 2020 - 2022 Ford Exterior Power-Boosting Potential: Customers have reportedThe stock transmission is designed to handle the output of the stock engine, but not much more. Increase the durability of your drivetrain with a BD transmission. All transmissions come with BD's heavy duty transmission pan.