2003 Toyota 4Runner Owners Manual - Page 1369

'03 4Runner_U (L/O 0305) HITCHES D If you wish to install a trailer hitch, you should consult with your Toyota dealer. NOTICE z Do not install weight distributing hitch to weight carrying hitch receiver because it will be damaged your vehicle. z Do not use axle-mounted hitches as they can cause damage to the axle housing, wheel bearings, wheels or tires. Also, never install a hitch which may interfere with the normal function of an Energy Absorbing Bumper, if so equipped. 1 2 3 4 Trailer ball load rating Ball diameter Shank length Shank diameter D Use only a hitch recommended by the hitch manufacturer and the one which conforms to the total trailer weight requirement. D According to the hitch receiver type, the maximum gross trailer weight and hitch that can be used differs. Refer to the above illustrations to confirm the hitch receiver type for your vehicle. D If you wish to install an aftermarket hitch, the hitch must be bolted securely to the vehicle frame and installed according to the hitch manufactures' instructions. D The hitch ball and king pin should have a light coat of grease. D Toyota recommends the ball mount assembly be removed when not towing to prevent injury and to prevent damage in the event of a rear end collision. After removing the ball mount assembly, install the grommet to the hitch to prevent entry of dirt and mud. 269 2003 4RUNNER from Apr. '03 Prod. (OM35820U)