My Jeep has recently developed an annoying "clunk" or "pop" when I harshly accelerate off the line. Not that I accelerate harshly on a regular basis, sometimes it happens when I'm on a hill as well. I feel like something is shifting forward or backwards, it definitely doesn't sound internal. I am attaching a video of the jeep that a buddy shot so yall can try and hear the sound. It happens at 13 sec and again at 22 sec. Thanks!

 

Sounds like ujoints to me...get under there and wiggle your driveshaft...that's always a good plae to start

 

I just had my driveshaft rebuilt 6 months ago, but I checked anyway and everything seems fine. It sounds like it's coming from the drivers side wheel area, but the u bolts and everything seem fine. Idk what it could be, I'm gonna put it up and check all the bolts this weekend.

 

Beside the u-joints, check (grease) the slip yoke, check the motor mounts, check for sticking brakes and check all the bushings on the front end, to name a few.

 

I had a broken cross member bolt that would cause the same thing... It could be that or the mount also.

 

How bout we post this in the OEM tech section? I doubt the clunk is coming from a unimog axle...