1999-2006 GM 1500 Limit Strap Kit Front 6 Inch Sub-Frame Drop (110-90224)Used on these older vehicles where the shock was not designed to be the droop limiter which means the upper control arm was taking the abuse and transferring the load to the upper ball joints. Features Limit Strap Kit (Front 6 Inch sub frame drop) for 99 06 Silverado Sierra 1500 2WD 4WD Torsion Bar Front End Lift Height: 6. 0 Inch Drive: 2WD 4WD Location: Front Details This limit strap kit is recommended to be added to these vehicles whether running a