Upper control arms from DEEKE4X4 company. Withstands a lift of 2-4 inches. Very strong and can handle rough terrain. Fits Sierra and Silverado models from 2014-2018. Contact me and send your car's VIN to ensure part compatibility. For contact, WhatsApp (055456100). Note: The part is shipped via express air cargo, taking 5-8 days from the order date. Price: 950