2011 Dodge Ram 1500 Crew Cab Owner Manual - Page 543

542 MAINTAINING YOUR VEHICLE This inspection should be made with the vehicle in a level position. The fluid level should be even with the bottom of the fill hole for the manufacturer's C205F HD front axles. The fluid level should be 5/8 in (16 mm) below the fill hole on 9 1/4 in manufacturer's rear axles. For all 2500/3500 Model axles, the fluid level should be 1/4" ± 1/4 in (6.4 mm ± 6.4 mm) below the fill hole on the 9.25 in front and 3/4 in ± 1/4 in (19 mm ± 6.4 mm) on 10.5 in rear axles. The 11.5 in rear axle level should be 1/4 in ± 1/4 in (6.4 mm ± 6.4 mm) below the fill hole. components. Operation of the vehicle in water, as may be encountered in some off-highway types of service, will require draining and refilling the axle to avoid damage. Limited-Slip Differentials This vehicle requires that 4 oz. (118 ml) MOPAR௡ Limited Slip Additive or equivalent be added to the gear lubricant. Refer to "Fluids, Lubricants, and Genuine Parts" in "Maintaining Your Vehicle" for further information. The MOPAR௡ Limited Slip Additive or equivalent should be added to the gear lubricant whenever a fluid change is made. Drain and Refill Refer to "Maintenance Schedule" for further information. 2500/3500 Model Axles DO NOT REQUIRE any limited slip oil additive (friction modifiers). Lubricant Selection Refer to "Fluids, Lubricants, and Genuine Parts" in Transfer Case "Maintaining Your Vehicle" for further information. Drain and Refill NOTE: The presence of water in the gear lubricant will Refer to "Maintenance Schedule" for further information. result in corrosion and possible failure of differential