Hey, Scotty. Love your videos and your solutions.
I bought my pickup with 230k miles on it last summer. It was a cosmetic nightmare, but it ran like a new one. Still does now with 238k. But there's a clunking feeling somewhere underneath when I stop and go. I thought I had a loose rear axle, but the mechanic who raised it and gave it a glance said there was nothing loose that he could find--not shocks, not ball joints, not the bed, and so far as he could tell, not the u-joints.
I'm wondering if maybe motor mounts or transmission mounts could cause this. I was told when I bought the truck that the engine had been rebuilt at around 150k. It's tight as a drum, no oil burning or leaks, etc., and I've restored it cosmetically to look like new. I don't want to keep it if there's a costly or dangerous looming problem, but I don't want to give it up if I can get the stinking clunky feeling to go away.
I know the Generation 11 F150 had lots of issues, but I have grown to love this old truck, and I bought it for a song.
Thanks for any advice you might offer. If you say sell it, I will, though it'll break my heart.
Mike in Lubbock
It could be so many things. It needs more than just a glance.
Someone needs to properly inspect it, front to back, all the moving parts.
https://www.youtube.com/watch?v=MbALG2rglXQ
I believe the fellow who put it up on the rack covered all those possibilities. The wheels have no play at all, for instance, none like the worn tie rod end in your video, and none between forward and reverse spinning. It sounds and feels to me for all the world like a bad u-joint, but they were okay, as was play at both ends of the driveshaft. Thanks for the quick response, though! That would definitely have been something to check. :d