2007 Dodge Ram 1500 Pickup Owner's Manual - Page 483

MAINTAINING YOUR VEHICLE 483 "purge" excess grease and the bearing will look slightly wet. This is normal. Periodic inspection for excess play is recommended. Rear Wheel Bearings - Manufacturer's Axles These bearings are normally considered permanently lubricated. Cleaning and repacking is required only when axle shafts are removed or in case of extreme water or dust contamination. Noise Control System Required Maintenance & Warranty For 3500 2-Wheel Drive and 4-Wheel Drive models over 10,000 lbs. (4 535 kg) Gross Vehicle Weight Rating. All vehicles built over 10,000 lbs (4 535 kg) Gross Vehicle Weight Rating and manufactured for sale and use in the United States are required to comply with the Federal Government's Exterior Noise Regulations. These vehicles can be identified by the Noise Emission Control Label located in the operator's compartment. 7 Required Maintenance for Noise Control Systems The following maintenance services must be performed every 6 months or 6,000 miles (9 600 km), whichever comes first, to assure proper operation of the noise control systems. In addition, inspection and service