1996 Ford F350 Owner's Manual - Page 212

RWARNING The rear antilock brake system may not prevent brake lock-up on extremely slippery surfaces. Rear brake lock-up may also occur while driving in four-wheel drive because the transfer case couples the front and rear axles together. Traction-Lok Rear Axle (If equipped) This axle provides added drive away traction on slippery surfaces, particularly when one or more wheels are on a surface with poor traction. Extended use of other than matching size tires on a Traction-Lok rear axle could result in a permanent reduction in effectiveness. This loss of effectiveness does not affect normal driving and should not be noticeable to the driver. RWARNING To avoid injury, never run the engine with one wheel off the ground, such as when changing a tire. High water Never attempt to cross water that is fast flowing or of unknown depth. Do not drive through flooded areas unless you are sure that the water is below the bottom of the wheel hubs. If you must drive through high water, drive slowly. You may have limited traction or wet brakes, so allow extra stopping distance because your vehicle will not stop as quickly as usual. 210