The SEMA show in Las Vegas is home to an assortment of vehicles, from vintage pickups to the ultimate off-road-ready adventure rigs. Now, a 2020 Jeep Gladiator is up for sale on eBay. With many modifications added for its SEMA debut, it could be the perfect vehicle if you want something already built and ready for adventure. SEMA-built 2020 Jeep Gladiator: DetailsThe 2020 Jeep Gladiator rides on 40-inch Toyo Open Country mud-terrain tires mounted to KMC Beadlock wheels and Currie high-pinion Dana-60-style axles. According to Hagerty, Dana 60 axles were initially meant for 3/4 ton trucks, makin…