snippet: PRO RUNNER SS MONOTUBE 14-15 GM1500 2/4WD Front 0-1.75"PRO RUNNER SS MONOTUBE 14-15 GM1500 2/4WD Front 0-1.75" - ZX2108It is recommended that you replace the shocks and struts of your vehicle every 50,000 to 100,000 miles. Replacing your shocks and struts will help reduce your braking dist (Page 1)