Curious if anyone else is experiencing a clunk in the driveline when hitting the accelerator after coasting a short distance? Mine does it at most speeds. I’ve only got 2k miles on it.

The dealer was able to recreate it the noise and agreed it was odd. They drained the differential and filtered the oil for any metal bits It was clean. They also checked the backlash and gear mesh with gear paint. All was in spec.

They drove several other Super Duty’s on the lot, and they do it too.

Conclusion was it is characteristic of the truck and normal?

Mine has it also. The dealer checked it and concluded it was normal. We also drove another F250 and that one did it also. So I’ll keep an eye on it and see what happens.

There is a thread in the Ram forums on this topic as well. My Ram 3500 is horrible. It has been narrowed down to the T-case making the noise. Sometime in late 2012, Ram switched from the NP271/273, which was quiet, to a Borg Warner unit, which is clunky. Did Ford recently change T- cases with the 2017?

Excellent point. I have the 6.2L super crew with the short bed. No lift or mods performed at this time.

I should have noted it never does it when acceleratong from a complete stop or when decelerating to a stop. But, it will do it if I was to slowly roll through a stop sign and never come to a complete stop (not that I would ever do that). As soon as I get back on the accelerator from coasting, there’s a clunk, as if there is some slack somewhere and then it’s physically engaging.

Mine is a 6.2 crew cab short bed 20 inch wheels. I have the symptoms as Lincoln05.

Thanks for the feedback wildcard. Where not everyone appears to be experiencing this with the 2017, I am wondering if it might be isolated to the super crew cab?

If I understand the 2017 correctly, regardless of what cab version you have, it still has the same tranny, transfer case, and differential. If there was an issue with one of those three items, I would expect a far larger range of folks to be experiencing this.

I’m wondering if the angle that the driveshaft enters the transfer case on the super crew is creating a similar situation to the slip yoke Clunk which has plagued Ford driveshafts for years, although I understand that to be an issue more at start and stop situations.

Thanks for the feedback on your trucks. I believe the 6.7 has a different tranny, transfer case, and drivetrain setup, which helps to narrow this down to a 6.2L super crew cab issue.