I installed it myself. Install would probably cost $400. This kit does the job, but I think the Ready lift 3" kit is better quality. I wanted a little shorter so I can fit in the garage.
www.roughcountry.com
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2.5 Inch Lift Kit | Magneride | GMC Yukon 4WD (2021-2024)
2.5 Inch Lift Kit | Magneride | GMC Yukon 4WD (2021-2024)