I used Monroe Shocks & Struts Load Adjusting 58654 Shock Absorber on a 2015 GMC not sure if same part number. Anyway looking online one article states these will work. But when search online they say they won't, not sure if they will fit. Like how they help with sag and add a extra inch to back height. Looking to find out of these will fit or another brand that made for help in towing/sag and possibly add a inch to rear height