Well this was fun...
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Mountain Pass
Joined: Jan 2008
Posts: 211
Likes: 0
From: North West Arkansas
Well this was fun...
.....my impression of Tigger from "Winnie-the-Pooh".
new to me 2015 F350 CCLB 4X4 DRW 117K miles
I-167, concrete interstate, 70 mph
I acknowledge the fact that this is a HD truck and I-167 is definitely NOT the best road in the world, but it shouldn't have been that bad....
On perfectly groomed interstate, its fine, anything less is not.
factory size tires LT245/75/17 65 ft/lbs all around, stock suspension including shocks as far as I know.
Truck was packed with 'stuff' as a result of a family member relocation, but I would not say that it had a lot of weight on it.
Shocks?
Shackles?
Bags?
SOL?
I would have hoped for a little better ride than that...
mike
new to me 2015 F350 CCLB 4X4 DRW 117K miles
I-167, concrete interstate, 70 mph
I acknowledge the fact that this is a HD truck and I-167 is definitely NOT the best road in the world, but it shouldn't have been that bad....
On perfectly groomed interstate, its fine, anything less is not.
factory size tires LT245/75/17 65 ft/lbs all around, stock suspension including shocks as far as I know.
Truck was packed with 'stuff' as a result of a family member relocation, but I would not say that it had a lot of weight on it.
Shocks?
Shackles?
Bags?
SOL?
I would have hoped for a little better ride than that...
mike
Junior User
Joined: Dec 2014
Posts: 98
Likes: 1
I have a 2015 CCSB with 104,000.
Replace the shocks if still factory.
Balance tires. If they are worn well, replace them.
Track bar replacement. Mine was bad at about 85,000
Steering alignment.
These trucks aren't known for ride quality, but mine does fairly well on the highway.
Good luck!
Replace the shocks if still factory.
Balance tires. If they are worn well, replace them.
Track bar replacement. Mine was bad at about 85,000
Steering alignment.
These trucks aren't known for ride quality, but mine does fairly well on the highway.
Good luck!
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Logistics Pro
Joined: Jan 2010
Posts: 4,094
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Something that MAY help, if it is truly tire-related, are centramatic balancers. I've heard enough guys rave about them that I'm debating getting a set for myself - I don't have any serious issues, just a random jiggle on the highway sometimes after I've been in loose gravel, but then my tires tend to pick up every little stone they can find.
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Mountain Pass
Joined: Jan 2008
Posts: 211
Likes: 0
From: North West Arkansas
I don't think this is tire related.
I do think it is a combination of bad road conditions (nothing I can do about that) and possibly bad shocks?
It does not FEEL like a front end issue. I don't feel it in the steering wheel. Most of it feels like its in the seat which tells me its a back end deal.
I do think it is a combination of bad road conditions (nothing I can do about that) and possibly bad shocks?
It does not FEEL like a front end issue. I don't feel it in the steering wheel. Most of it feels like its in the seat which tells me its a back end deal.
Junior User
Joined: Mar 2019
Posts: 97
Likes: 0
First I'd take it to a tire shop and ask them to check the balance of each tire and rebalance any out of balance. Have them rotate front to back as well.
Does it feel like it's a side to side shake or up and down? Side to side I'd suggest that a tire(s) has a broken or slipped belt. If its up and down, have some one ride next to you and look to see if the rear tires or bouncing.
no offense but, have you checked to verify that all lug nuts are tightened down? Jack up the truck and shake the tires, maybe a bad bearing has started chewing thru the spindle? Verify that the spindle nuts have not came loose.
If the truck had excessive weight for an extended amount of time, might have blown seals out of shocks.
Does it feel like it's a side to side shake or up and down? Side to side I'd suggest that a tire(s) has a broken or slipped belt. If its up and down, have some one ride next to you and look to see if the rear tires or bouncing.
no offense but, have you checked to verify that all lug nuts are tightened down? Jack up the truck and shake the tires, maybe a bad bearing has started chewing thru the spindle? Verify that the spindle nuts have not came loose.
If the truck had excessive weight for an extended amount of time, might have blown seals out of shocks.
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Mountain Pass
Joined: Jan 2008
Posts: 211
Likes: 0
From: North West Arkansas
Motion is most definitely up and down. I attribute MOST of the behavior to bad roads (concrete interstate) but the severity of the motions should NOT have been that exaggerated.
I have Bilstein 4600's on order. We'll see what happens.
mike
I have Bilstein 4600's on order. We'll see what happens.
mike
Hotshot
Joined: Oct 2006
Posts: 10,146
Likes: 7,974
From: Texas
Originally Posted by flysniper;19868874[u
]Motion is most definitely up and down. I attribute MOST of the behavior to bad roads (concrete interstate) but[/u] the severity of the motions should NOT have been that exaggerated.
I have Bilstein 4600's on order. We'll see what happens.
mike
I have Bilstein 4600's on order. We'll see what happens.
mike
4wd Low
Joined: May 2021
Posts: 13
Likes: 9
That’s fairly common in a lot of super duty CCs especially the LB. My CCSB does it but not quite that bad. I did new rancho 9000s and they were a major improvement in ride quality but didn’t help this issue much on any setting. It’s the frame flexing or hopping that causes this. If you ride in a car behind the truck and sight down the side of the truck when this is happening you can clearly see the frame is flexing up and down. It seems to mainly be a problem in the 35 and 70 mph range.
Senior User
Joined: Feb 2020
Posts: 396
Likes: 10
From: Fort Mill SC
Unsure what your asking, seems like its "as built"!
Honestly looks like you have a few issues, shocks if its ok on smoother roads and not on others, tires are probably either shot or need to be balanced.
From my experience, which was not close to yours, a new set of shocks improved the ride a TON, I feel when I need tires I will move to more highway type tires in liue of the 18 wheeler type I have now.. The market is horrible right now and if I had something to put the old ones on I would just swap them out now but I have to many good tires laying around, various sizes that need a home, none that will fit anything I own..
Thanks for moving my "clean up the tire pile" to the top of the list.
Honestly looks like you have a few issues, shocks if its ok on smoother roads and not on others, tires are probably either shot or need to be balanced.
From my experience, which was not close to yours, a new set of shocks improved the ride a TON, I feel when I need tires I will move to more highway type tires in liue of the 18 wheeler type I have now.. The market is horrible right now and if I had something to put the old ones on I would just swap them out now but I have to many good tires laying around, various sizes that need a home, none that will fit anything I own..
Thanks for moving my "clean up the tire pile" to the top of the list.
Fleet Mechanic
Joined: Feb 2002
Posts: 1,483
Likes: 273
From: Tulare U.S.A.
I drop my tire pressure to 50 pounds when I'm not hauling or towing something. I have 295/70R18s 10 ply's which have 4080 pound rating and my tire monitors reset to 45 pounds with Forscan. It makes a huge difference in ride. If I were you I wood start with shocks just like you are. I also have air bags that I put 10 to 15 pounds of air in when running empty. This stops the porpoising front to back.
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