Ford driveline issue

[CAMAN]

Mid to late 00's F150. 150k miles. This is my buddies truck and he was pulling out of my driveway yesterday and when he went to drive away he heard a loud pulsating sound. I crawled underneath and found the driveshaft had slid out of the transmission about 2" and the middle support bushing was completely out of its housing. It doesn't look like the rear axle has moved, so what else would cause this? I can't imagine the motor/trans assembly could move this much.

[Macgyver55]

Center bolt broken on the rear spring mount maybe?

I worked on an Expedition recently that had a broken trailing arm that let the differential move backward when accelerating that pulled the shaft out of the trans.

[CAMAN]

That's kind of what I was thinking but you can look at the bump stops on the frame and they are centered directly over the axle.

[fishing tech]

Is it the carrier bearing?

[jmd1]

I was leaning toward carrier bearing, if it failed or bolts rotted away and allowed it to drop, would pull the shaft out of trans.

[JOHNBIGDOG]

Your carrier bearing failed. You may be able to replace it alone, You may need a new shaft. I would suggest replacing u-joints while your at it, if they are replaceable.

[CAMAN]

The carrier bearing is the part that supports the middle of the driveshaft correct? That's interesting as that part looked almost like brand new, just pushed out of the frame. I never would have thought that was holding everything in place. Thanks everyone, he'll be happy to hear it may be an easy fix, not the greatest thing to have happen the night before you head north for deer opener. Good thing they were planning on taking his brothers truck.