Dana DS10044458 Spicer Chromoly Axle Assembly Dana 44 M210 Advantek Front 2018+ Jeep JL-2020+ Gladiator JT Narrow Track Open Diff. Engineered to deliver added strength and durability, Spicer Chromoly axle shafts meet the exacting demands of off-road. Utilizing SAE-4340 nickel chromoly provides additional toughness, high-temp strength and abrasion resistance, and the ability to maintain a specified hardenability. Hit the trail with the confidence that comes from knowing you are backed by the global leaders in driveline products.