Same here... Is the bounce gone in the 2017?

 

2017 has fully boxed frame and bounce is gone.

 

Installed the damper today. Have a 500 mile trip tomorrow to test it out. My only concern is that there is zero clearance between the damper and the sulastic shackle. Test drive had no noises or felt issues with rubbing etc. So hopefully it will be fine. Will update after the trip on ride improvement if any.

The damper is basically a rubber gyro like device. Only partial rotation then rebounds.

 

Yessir, glad to report the 2017 F350 CCLB has no bounce. She's rock solid!

 

Cool man. Let us know. I can't remember how the damper mounts but maybe it can be slotted and moved away from the sulastic 1/8" or so?

I can't wait to hear what you think of the combo.

 

Well.....

I'm sorry to say, but this thing is a $500 paper weight. ☹️

It does reduce the hop, but not a lot. Maybe 10-15% by seat of the pants

Not the reduction I had hoped for.

 

Yeah, that is my experience. I was hoping combined with the Sulastic you would have better results.

 

Update...I just recently purchased some wheels and tires from someone on this site. They are 20" OEM Platinum wheels with the Michelin shoes...hop is gone! I 100% firmly believe that it was the egged shaped BFGs causing vibration and or an odd oscillation which was causing the hop in the rear end.

I understand this might not be a solution for everyone, actually I know it's not, but I just wanted to update my original post for the record.

 

I'm surprised I don't have any issues with my truck rides great. No bounce at any speed. I'm guessing not all trucks have this problem.

 

Sadly, mine already has that...

 

Mine is some what rougher than my ccswb f250. But i also have airbags and a couple thousand pounds in toolboxes and a flatbed so that migh be the issue as well

 

While most have the bounce issue in the 40's, I am more like 60-75mph.
It's horrible on the concrete portion of the Interstate!

Now if this works I will be happy to fabricate something but has anyone else tried a frame brace like this? This appears to be forward of the trans case which seems like it would need to be further back. I have a CCLB 6.2L 2012 f350 and if this works I will fab something up for sure. I just installed 35" Dick Cepeks with Bilstein 5100's and while it reduced it, it definitely didn't cure it.

I can buy into the flex in the C-channel - there's a lot of leverage in a frame this long.

Mhatlen: do you have any more information on this? How many bolt holes had to be drilled? What size bolts? If this worked it probably also made your overall ride quality great!

 

I'd be down for giving it a shot

 

Concrete bounce due to concrete road segments is a different problem associated with the taking a bit of a hop on the road segments.


The 40 mph bounce is likely due to wheel or tire run out or out-of-round. Some suggest it's a harmonic effect, others say suspension, etc.


We have seen many attempts with some working and others not so much.


I noticed the biggest improvement when I took the truck to Les Schwab (an entirely different tire store from where I bought them) and had them road force balance again and the problem is nearly gone. This certainly suggests there is a problem with the wheels and or tires.


Watch for tire out-of-round and wheel run-out where the rim has a slight wobble (more likely occurs with inner dually steel rims).


At one tire store, they propped up the rear and while the tires turned at engine idle, we could see the tire to ground clearance change. Opps... Sure looks like out-of-round tires... Goodyear was very very nice and no hassle replaced them.


Truck 2016 F450
Tires: Goodyear G622 19.5

 

So I will say I don't remember having this issue with the original wheels/tires on the truck. I believe they were 17 or 18" steel wheels. Well, definitely steel and I think 17".

I swapped those out for a set of 20" Ford XLT aluminum wheels with rather worn Michelins but enough to get me through one more season. I noticed it got worse but I attributed that to worn shocks and crappy used tires.

After installing the 35" Dick Cepeks - DAMN is it bad!! And I now notice the pronounced 40-44mph hop as well as the 60-75mph hop. That 60+ one is so bad I will drive 80-85 to avoid it. I don't drive on concrete highways daily but when I do I can't stand it! I can see the light from my headlights bouncing on the vehicles in front of me.

I am going to setup a road-force tire balance but I have little faith that will cure the issue. It seems that's only one part of the problem. I would be that the same out-of-round wheels would not have the same result with the 2017+ boxed frames. If road force plus a crossmember brace is the solution than so be it, but no way can I continue to drive this truck like this. I notice it in small amounts even on asphalt now and never noticed that before the 35" tires.