Why does a newly replaced driveshaft keep failing?
A freshly installed driveshaft or U-joint can quickly shake loose or fall apart again during highway driving, leaving the vehicle trapped on the road. This sudden failure stops the car from accelerating smoothly and causes a violent screeching or grinding noise whenever power is applied.
What people tried
Every workaround mentioned in the threads below. We haven’t tested any of them — and nobody here is claiming they worked.
Found another way around this?
Share your steps and trade-offs so fellow engineers don't have to reinvent the wheel. No account required.
- 1putting the car up on a jack to inspect the componentsDid this help you?
- 2ordering parts online and replacing themDid this help you?
- 3driving home in four wheel drive highDid this help you?
- 4taking the vehicle to a repair shopDid this help you?
In their words
Unedited, grouped by where they were said, most upvoted first within each place, each linked to the thread it came from.
“The driveshaft and bearings on my Ford Police Interceptor Utility 2016 were destroyed a year ago. Violently shook and screeched when I drove and couldn't increase speed easily.”source ↗
“It started grinding for a few seconds then stopped, then went on and off if I slowed my speed and tried to regain it. Now whenever I pull off or accelerate its grinding and making noise.”source ↗
“Put it up on the jack and was told the driveshaft came apart.”source ↗
“On way home from getting new tires my driveshaft fell out on main road the U joint failed. I replaced it today with new joint, took for a test drive and 5 min later it falls out again. U joint failed.”source ↗
“Do I just take it to a shop? This has me stuck.”source ↗