WARNING: This page is about a different car, the 2004 Mercury Mountaineer and 2004 Ford Explorer. However, it is still accessible from the selected car via links, so may be relevant.
The differences of alignment between the transmission output shaft, the driveshaft and the rear axle pinion centerline.
Fig 1: Identifying Alignment Differences Between Transmission Output Shaft, Driveshaft And Rear Axle Pinion Centerline