2003-2007 GM HD All Lights On Module Select Models (FPE-GM-ALO-37) turbocharger-heat-shield uService technology for easy field

uService technology for easy field service without voiding warranty

Fully Adjustable On-Truck (0-6" Lift Range): Dial in precise axle alignment without removing the track bar

DRW models: fit inner wheel clearance to the upper u-bolt plate on 5

These shocks are optimized for on-road comfort and daily driving applications

Reinforced Mesh Enhances Passenger Protection From Wind/Debris

2003-2007 GM HD All Lights On Module Select Models (FPE-GM-ALO-37) turbocharger-heat-shield uService technology for easy fieldThe Fleece Performance GM All Lights On Module 2003 2007 Select Models is built to OEM or better standards for diesel truck owners who want a no compromise upgrade. Engineered, manufactured, and supported by Fleece the diesel performance specialists. Features 2003 2007 Classic 2500 3500 Silverado Sierra Remove the relays labeled: FOG LP, HDLP LOW, DRL, HDLP HI Lay the GM All Lights On circuit board in the location shown below Reinstall the four relays