Cognito Torsion Bar Keys for 11-19 Silverado/Sierra 2500/3500 2WD/4WD 2001-2004-6-6l-lb7-duramax 75" in overall length

75" in overall length

This fog mount kits include the 360-Series 4 inch street legal SAE J583 Compliant LED fog lights

3L Coolant Filtration System XD249

high-end look

2 HP & +33

Cognito Torsion Bar Keys for 11-19 Silverado/Sierra 2500/3500 2WD/4WD 2001-2004-6-6l-lb7-duramax 75" in overall lengthTorsion bar keys are used to set the ride height of the front of the truck and are commonly used in leveling kits, and it is important to set the height appropriately as to leave ample suspension droop travel to maintain a good ride quality. There are several different torsion bar spring rates that GM made and put in these trucks, the rate depending on the model and features of the truck. Some trucks that have a higher spring rate may not need