Drive/Propeller Shaft: Service and Repair

1. Mark the relationship of the driveshaft to pinion flange, then disconnect rear U-joint or companion flange from drive pinion flange.
2. Pull drive shaft toward rear of car until front U-joint yoke clears transmission extension housing and output shaft.
3. Install a suitable tool, such as a seal driver, in seal to prevent lube from leaking from transmission.
4. Before installing, check U-joints for freedom of movement. If a bind has resulted from misalignment after overhauling the U-joints, tap the ears of the drive shaft sharply to relieve the bind.
5. If rubber seal installed on end of transmission extension housing is damaged, install a new seal.
6. Lubricate yoke spline with special spline lubricant. This spline is sealed so that transmission fluid does not ``wash'' away spline lubricant.
7. Install yoke on transmission output shaft.
8. Align marks on driveshaft and pinion flange, then install U-bolts and nuts which attach U-joint to pinion flange. Tighten U-bolts evenly to prevent binding U-joint bearings.