1997 Ford F350 Owner Guide 1st Printing - Page 270

Driveline Universal Joint and Slip Yoke The universal joints that come standard with your vehicle do not require lubrication. If your original equipment universal joints are replaced with universal joints equipped with grease fittings, lubrication will be necessary at the intervals shown in the Maintenance Schedule booklet. Your vehicle may be equipped with a constant velocity or double cardan joint at the transfer case end of the driveshaft. The front driveshaft double cardan joint may be fitted with a flush type grease fitting that requires an adapter to permit proper lubrication. Lubricate the drive joint according to the intervals shown in the Maintenance Schedule booklet. Double cardan joint Windshield Washer Fluid Washer Fluid Check the level of the windshield washer fluid every time you stop for fuel. The reservoir for the windshield washer fluid is located in the engine compartment. 271