I installed this on the front differential on my 2018 Jeep JL Wrangler and have encountered rock and hit the ground going over ruts. It's rock solid and helps the differential slide while protecting it. They only give up 1/4 inch clearance. A small price for reliable protection. You don't have to retrofit the differential cover. It protects the drain cover and its screws very well. I also have Rancho skid plates on my 2008 Jeep Wrangler. Takes impact and protects.