Rough Rider GMC 2500HD need help!

We have a 2011 GMC 2500HD and pull 27' TT. Rides very nice now, but when we had undersized WDH, we had bounce and unstable ride. It was not fun going through a dip in the road. We upgraded our receiver on truck (to eliminate flex), upgraded the WDH to handle the weights to solve our problem.

WDH needs to be setup right, including spring bars the right capacity,etc
Tire pressure needs to be right

You will likely need to weigh your setup and get some accurate weights so you know what you have.

87bob wrote:

N-Trouble wrote:
Everyone giving suggestions but it's still not clear what the OPs problem is exactly. I love these kind of threads...

I guess I don't know how to better explain a rough ride better then I did. If there is any roughness to the surface to the road it just beats the occupants up. I feel like one of the ice road trucker look in the show video. I had a 07 Avalanche LTZ with air ride and no matter how rough the road was the shock to the cab was minimum.

Well, try. There are many ways people can be beat to death.

Is the motion up and down, or forward and back, or side to side? Is it a slow bam-bam-bam, or more of a fast vibration? Are you literally being thrown from your seat, if not for the seat belt?

You need to better define what's going on so everyone can get an accurate picture of the severity of the situation. Some people just have a "princess and the pea" complex where if they feel anything at all from the road, they're being "beat up." I'm not saying you're at that level of extreme, but I don't think you're at the "Ice Road Truckers hitting your head on the cab roof" extreme either.

How does the truck ride unhitched? Have you tried towing the trailer around the neighborhood without the WD bars engaged?

87bob wrote:

N-Trouble wrote:
Everyone giving suggestions but it's still not clear what the OPs problem is exactly. I love these kind of threads...

I guess I don't know how to better explain a rough ride better then I did. If there is any roughness to the surface to the road it just beats the occupants up. I feel like one of the ice road trucker look in the show video. I had a 07 Avalanche LTZ with air ride and no matter how rough the road was the shock to the cab was minimum.

Okay, BUT there have been numerous questions asked here that have still gone unanswered. We're all trying to help you, but without any background info were all speculating...

Are you the original owner or second owner? Has the truck been leveled or does it still have the factory rake? ~3" higher in back than front

You can't expect a HD truck to ride like a 1/2 ton. Ain't gunna happen...

N-Trouble wrote:
Everyone giving suggestions but it's still not clear what the OPs problem is exactly. I love these kind of threads...

I guess I don't know how to better explain a rough ride better then I did. If there is any roughness to the surface to the road it just beats the occupants up. I feel like one of the ice road trucker look in the show video. I had a 07 Avalanche LTZ with air ride and no matter how rough the road was the shock to the cab was minimum.

Everyone giving suggestions but it's still not clear what the OPs problem is exactly. I love these kind of threads...

More information needed

Any modifications and if used, from the previous owner(s) ?

After market stuff? Like the tires/wheels ? Anti-lean (sway) bars
on the trucks suspension? Or after market helper springs?

Terrain? Speed over that terrain?

and as previously noted...what do you mean 'rough rider' and 'beating
you guys to death' ?

Can we assume it is okay not towing or does it likewise beat you
guys riding it empty ?

What WD Hitch system? How is it setup? Or is your Zinger a Fiver?

Also check your tire pressure, front, rear, and TT. If you are not near to the weight limit of the tires you don't need maximum pressure. Try lowering the pressure 5 psi. It will make a difference in the ride.

Thanks to everyone who has responded! There are lots of great suggestions.

on our 04 duramax and our 2015 duramax I switched to the bilstein shocks in short order. at about 5,000 miles on the 04. within 500 miles on the 2015.

Bilsteins greatly improved the ride. much better damping control, especially when towing.

With both trucks I tow a 30ft outback, 9,000lbs and 1400lbs tongue weight. We can't complain about the ride, comfortable yet controlled.

Describe more specifically what kinds of road surfaces give you problems,

Might want to get that thing out to the scales and check your set up, I have a 2012 2500 Sierra long bed and when hooked to our 23' trailer it rides like a 1950 Mercury going down the highway, I really enjoy the ride.
Now when not towing yeah it rides like a 3/4 ton truck should.