Pontiac Torrent All-Wheel Drive U-Joint
This is a quality replacment u-joint fitting the prop shaft extending from the PTU (power take-off unit) to the rear diffferential. This prop shaft (drive shaft) contains two of these u-joints. The center u-joint, located just behind the center bearing requires replacing when changing the center bearing because it is very unlikely to save the u-joint during dissasembly. Since the u-joints usually are not bad when the center bearing fails the front u-joint is commonly not changed at the same time.