Trucks and SUVs use different hitch sizes. Class 3 Cadillac hitch plugs fit the standard 2-inch receivers found on the Escalade. Class 2 plugs fit the smaller 1.25-inch receivers on crossovers like the XT4. This ensures a tight fit that won't rattle on the highway. The stainless steel base resists road salt and rain. Because the metal is high quality, it won't pit or corrode after one winter.
