PPE Power Pressure Calibration Kit GM Allison 1000 and 2000 Series 2001-2010 - 128041000

This kit serves as a great upgrade when building a 5 or 6 speed Allison 1000 transmission. This kit is recommended for trucks hauling heavy loads and making high horsepower. The increase in line pressure improves your clutches' holding ability and the calibration springs will tighten up shifts.