Limit Strap Kit - 6 Inch Lift - 01-10 Chevy 3500 4wd - Diesel. In a Suspension System Where The Upper Control Arm Hits The Droop Stop, The Upper Balljoint Is Taking Most Of The Abuse, By Catching The Weight Of The Wheel, Tire, Spindle, etc..... Using Our Adjustable Limit Strap Kit Will Transfer That Load To The Lower Control Arm, Taking Some Of The Stress Off Of The Upper Balljoint. This Can Prolong The Life Of Your Balljoints. Use These Limit Straps As An Added Safety Feature As Well. Recommended For All Cognito Systems.