I am in need of help and suggestions on how to fix or even make this better so between 40-45 mph i get a really bad hop in the rear end of the truck. i have tried the bilstein 5100 shocks in the front and rear and still no help. i am not looking for the cadilac ride i know i bought a 350 superduty and it is used for towing i just want to take care of the bounce and need to be steered in the right direction. thank you in advance .

 

 

bad tire
loose lug nuts on wheel.
out of round wheel
bad U joint on driveshaft.
center carrier bearing for driveshaft.
overheated rear brake rotor.. warped.

 

I have the same problem on my 2011 F350. So far, new tires and shocks havent helped the issue. my next step will be having new Ujoints installed and get the drive shaft balanced.

 

I HAVE PUT NEW WHEELS AND TIRES ON THE TRUCK ALSO HAVE DONE NEW SHOCKS ON IT I HAVE SEEN THAT PEOPLE ARE REINFORCING THE FRAME WITH BRACES BY THE TRANSFER CASE AND ARE HAVING LUCK ALSO HAVE WATCHED ON YOUTUBE THE GO PRO VIDEOS ABOUT THE FLEX ON THE SUPER DUTY DUE TO THE FRAME BEING A C CHANEL AND NOW THEY HAVE BOXED IT OUT FOR THE NEW MODEL AND THERE IS NO FLEX AND NO HOP THANKS FOR THE INPUT I WILL KEEP UPDATED ON ANY PROGRESS AND KEEP CHECKING BACK HERE FOR ANY MORE INPUT

 

Just put a new set of Michelin 295/70/18's on and now notice the same sort of hop. Hoping its just a bad balancing job. I had 275/70 General Grabbers on before and had no issues. Going to get them rebalanced in the next couple of days and hope that cures the problem.

 

I noticed mine doing it the first day I had it. It's just my truck telling me it needs to be loaded down or towing something.

 

Mine comes and goes. I have replaced everything, had tires rotated/balanced even road force balanced and wheel matched. I gave up and just try not to drive in that range.

 

so what i have found now is the frame has alot of flex in it and we are going to make an x brace to bolt to the bottom of the frame right by the transfer case that is what i have seen to help the frame stop flexing and it wont hop. has anyone else done this on here and if so what are your results than you

 

I wonder if one of those thick rear sway bars would help.

 

I have an 03 F-250 xtra cab, 6" lift and 35's. I have bad wheel hop at 45 mph and again around 70 mph. I have replaced all driveshaft U-joints and shocks. It does not have a carrier bearing. It happens no matter if I am on the gas or not. I don't think it is a warped rotor or it would happen all the time? It came with a goose neck in the bed and the frame of the goose neck is welded to the truck frame so I imaging that has strengthened and stiffened the frame.
I just bought the truck and it has 110,000 miles on it. It came with the lift installed (not sure who the lift manufacturer is) and I noticed there is tapered blocks in the back. Every lift I have installed has had tapered blocks so I didn't think anything of it. I am thinking this is rotating the diff up and out of parallel with the transfer case output. I am thinking about trying some flat blocks from precision metal fab or one up offroad.

 

 

There are many threads concerning this issue, and it appears there is no one identified cause or solution.
The problem has been going on for 20+ years with some vehicles having it and some do not.
I haven't heard of the new trucks (2017) with the new box frame having it.

The biggest difference for me was having a good road force balance, but it is still there. Not as bad, but still there. The tech printed out a diagnostic sheet that showed rim wobble or run out on some of the rims. Aluminum do not bend, so they came that way. Steel rims do bend. They just aren't perfect.

They told me the worst was one of the inner dually steel wheels. With such a tight, stiff and rigid suspension, any wheel vibration would be magnified. The same vibration on cars would likely not be felt or noticed. Even if you feel like it is coming from the rear, some of the actual vibration could originate from the front tires and reverberate/oscillate to the back.

Look up the thread: -> Rear end bounces @ 40-45 by Thom12, and thread -> TSB 16-0087

 

 

I always wondered if my 2015 CCLB had the cloaking device ($500 damper) installed but always forgot to look.
so I just went and looked.
And no it's not there. Not that I thought it would be.....
I didn't know if some trucks automatically came with em.