2002 Chevrolet Avalanche Owner's Manual - Page 258

Dinghy Towing (Two and Four-Wheel Drive Vehicles) Two-Wheel-Drive Vehicles Two-wheel-drive, vehicles, should not be towed with all four wheels on the ground. Two-wheel-drive transmissions have no provisions for internal lubrication while being towed. To properly tow these vehicles, they should be placed on a platform trailer with all four wheels off the ground. In rare cases when it's unavoidable that a two-wheel drive vehicle is to be towed with all four wheels on the ground, the propeller shaft axle yoke orientation should be marked and the propeller shaft removed following the applicable service manual removal/installation procedure. Dust or dirt can enter the back of the transmission through the opening created by removing the propeller shaft if proper protection is not provided. Also, check the transmission fluid level before driving the truck. When the vehicle is properly attached to the tow vehicle and is ready to be towed, turn the ignition to OFF. To prevent the battery from draining, remove the IGN 0 fuse from the instrument panel fuse block. See "Fuses" in the Index for more information about removing the IGN 0 fuse. 4-47