Noise cab Mount or Suspension

[dieselscout80]

We had some construction work done on our property and it created a small ledge in the loop around the barn.

When my 2020 Ram 2500 goes off this ledge started making a thunk noise when the left front tire drops off it at less than say 5 mph. The small ledge aka drop off is less than 5” and likely less than that.

I can feel it when it happens in my feet and it only happens in this one location.

I’m thinking it’s either the left front cab mount or the left front shock, but what do you think?

 

[dieselscout80]

Here is a video of it.

April 23, 2026

Enjoy the videos and music you love, upload original content, and share it all with friends, family, and the world on YouTube.

youtube.com

 

[joesstripclub]

I get a similar noise every now an again if I hit a big bump or go through a dip similar to what you showed. I read something recently about cab mounts needing tightened but I havent checked mine yet.

 

[1999 White C5 Coupe]

We had some construction work done on our property and it created a small ledge in the loop around the barn.

When my 2020 Ram 2500 goes off this ledge started making a thunk noise when the left front tire drops off it at less than say 5 mph. The small ledge aka drop off is less than 5” and likely less than that.

I can feel it when it happens in my feet and it only happens in this one location.

I’m thinking it’s either the left front cab mount or the left front shock, but what do you think?

Recently began to receive a clunk on my 2014 Ram Outdoorsman 4WD - turning and going over a bump.

A quick check determined it was broken front sway bar (not the link).

 

[dieselscout80]

Recently began to receive a clunk on my 2014 Ram Outdoorsman 4WD - turning and going over a bump.

A quick check determined it was broken front sway bar (not the link).

My front sway bar has been disconnected on both ends/sides for a couple of years now, so that’s not the issue in my case, but it is a good thought.

 

[olyelr]

My front sway bar has been disconnected on both ends/sides for a couple of years now, so that’s not the issue in my case, but it is a good thought.

If its disconnected, is it just loose/flopping around? That could possibly make noise.

 

[RamCares]

We had some construction work done on our property and it created a small ledge in the loop around the barn.

When my 2020 Ram 2500 goes off this ledge started making a thunk noise when the left front tire drops off it at less than say 5 mph. The small ledge aka drop off is less than 5” and likely less than that.

I can feel it when it happens in my feet and it only happens in this one location.

I’m thinking it’s either the left front cab mount or the left front shock, but what do you think?

If needed, we can look into this for any pre-existing documentation for possible support. At any time, DM us with your VIN and we can start there.

Chris,
Ram Cares

 

[dieselscout80]

If it’s disconnected, is it just loose/flopping around? That could possibly make noise.

I double checked the sway bar and it is securely locked up and out of the way and not making any noise.

 

[Motoman501]

My 2015 2500 and my current 2019 2500 both did/do the same thing. I spent a lot of time trying to figure it out on the 2015 with no luck. A lot of people thought it might be the noise damper things or the cab mounts but I never saw where someone solved the issue.

 

[dieselscout80]

I decided to loosen the driver’s side front cab mount and retorque it.

When I loosen it water came pouring out.

Took the bolt all the way out and then retorqued it to 80 pound feet.

I’m wondering if I should take it back off completely (raise cab a bit) and use silicone on it to seal it so water doesn’t get back into it?

Will drive over that spot later today.

 

[dieselscout80]

Well I drove across the same spot and the noise is gone.

Basically I think the water was hydro locking the cab mount and preventing it from moving. I think they are hydraulic cab mounts that compress to cushion the cab.

They likely either need sealant or a drainage hole in the lower washer.

 

[dieselscout80]

Well I spoke to soon since today when drove over the same spot it clunked again, but it was softer and I couldn’t feel it in my feet.

I need to get the most up to date part number for the cab mounts if anyone knows what it is please post it.

I may try mounting my son’s GoPro down there and see if I can see what’s going on.

 

[olyelr]

I may try mounting my son’s GoPro down there and see if I can see what’s going on.

Yep thats a great way to help diagnose the culprit of the noise.

The water coming out of the cab mount bolt sure is odd.