Differential Cover Dana M200Armor for Diesel, 4xe, and High Altitude Wranglers. While the Dana 44 "M210" front axle is most famous for being under the Rubicon, it is also the workhorse found under the front of high torque non Rubicon models, including the Wrangler Diesel, Sahara 4xe, and High Altitude. These heavier, more powerful Jeeps require an axle housing that can handle the stress, and the ARB 0750010B Differential Cover is designed to ensure that housing stays rigid when