Cracks in the slip yoke would progress over time and the slip yoke could fracture without warning while the vehicle is being driven allowing the drive shaft to separate from the vehicle increasing the risk of a crash.
Ford is recalling 3,331 MY 2008 E-350 vehicles built with a 138 inch wheel base. The drive shaft may have been manufactured with a slip yoke that has cracks. The effect of the cracks on fatigue performance is variable, but on some yokes with cracks, the performance is reduced below design specification.
Dealers will have the drive shaft inspected for manufacturing date and replace it free of charge. The recall began on April 14, 2008. Owners may contact Ford at 1-800-392-3673.
