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Old Dec 3, 2018 | 07:59 AM
  #1  
moynihan1129's Avatar
moynihan1129
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Another suspension thread

OK - Had another long family trip this weekend and took the truck to have more space. I had to listen to my wife complain about the ride the entire time and how my old F-150 was so much better. I know its a truck and I bought it for said purposes. Anyone else out there made some adjustments to make the interstate better for the family without losing truck capability? Not looking to spend a ton of money, but looking for solutions other than the wife cramming us in her small vehicle for family trips! I have seen suggestions such as Rancho 9000 XL's and sulastic rear shackles, but don't want to replace them now if they aren't going to make a difference. My orignial plan was to wait until it had to be replaced to upgrade, but trying to make the wife happy.


2018 F250 6.2 Fx4

Sulastic. Leaf Spring Shackle
Anyone ever use these?
 
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Old Dec 3, 2018 | 08:20 AM
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xxxsherpa
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Have you started with lowering the tire pressure, it would be the cheapest start to the problem.
 
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Old Dec 3, 2018 | 08:24 AM
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Easiest thing to do is lower tire pressure if you haven't already, assuming you are not hauling/towing. There are other threads on the forum regarding shocks, from what I've seen it looks like Fox 2.0 are more recommended over the Rancho.
 
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Old Dec 3, 2018 | 08:25 AM
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moynihan1129
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Originally Posted by xxxsherpa
Have you started with lowering the tire pressure, it would be the cheapest start to the problem.
Should have mentioned - I started there. Running at 55 PSI in the front and 50 in the rear.
 
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Old Dec 3, 2018 | 08:35 AM
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Hmmm, things like this have me puzzled. I have a '17 CCSB 6.7 FX4 with the SPPP and 18" Wranglers. The truck is all stock including the white shocks. Has 19K miles. My wife PREFERS taking the truck on family trips because its so comfortable. The ride quality is firm but composed and with the exception of the occasional pothole or rail road crossing, very comfortable.

I have the tire pressure set at 57 PSI all around.
 
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Old Dec 3, 2018 | 08:54 AM
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I installed the sulastic rear shackles this past Friday and they are definitely worth doing. The new shackles take the harshness out of the rear suspension.
 
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Old Dec 3, 2018 | 09:13 AM
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Originally Posted by saucemann
I installed the sulastic rear shackles this past Friday and they are definitely worth doing. The new shackles take the harshness out of the rear suspension.
Did you do this yourself or have it done. If you just had it done, curious what the labor bill was (if you don't mind sharing).
 
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Old Dec 3, 2018 | 09:17 AM
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I think you'll get exactly what you're after with the 2.5" Carli Commuter leveling kit and their rear leaf add-a-packs. Carli spends a TON of time with their R&D compared to other aftermarket manufactures and has developed custom suspension components (springs and shocks) that are spec'd to work WITH one other, specifically for the new Superduty platform. These trucks seem to have a very hard "jarring" reaction to even small road variations and upgrading to one of their kits removed almost ALL of the hard, uncomfortable jarring I had with the stock suspension.
 
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Old Dec 3, 2018 | 09:24 AM
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I did it myself. Takes a couple of hours. I had trouble finding the right size allen wrench that would fit in tight spot because the upper shackle bot get replaced. Seems like most people are paying 2-3 hours of labor to have done.
 
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Old Dec 3, 2018 | 04:30 PM
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In addition to running mid-50s tire pressures I find throwing 6 60lb. tube sand bags in to the rear of the bed takes out excessive bouncing and generally improves the ride. It is not much weight but it is a noticeable ride difference.
 
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Old Dec 3, 2018 | 05:13 PM
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Originally Posted by Garyl53
In addition to running mid-50s tire pressures I find throwing 6 60lb. tube sand bags in to the rear of the bed takes out excessive bouncing and generally improves the ride. It is not much weight but it is a noticeable ride difference.
Factory shocks?
 
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Old Dec 3, 2018 | 07:08 PM
  #12  
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moynihan1129
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Originally Posted by Maiden666
Factory shocks?
yes - factory fx4 shocks
 
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Old Dec 3, 2018 | 07:28 PM
  #13  
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I’d definitely recommend changing shocks. Until you get the factory shocks off and compress them by hand, you really don’t realize how pathetic they really are. It’s pretty sad. I put Fox 2.0 on my ‘17, and when I traded for my ‘19 I went with Rancho 9000 XL’s with Sulastic shackles. I had a local a mechanic swap that, the rear blocks, and the steering stabilizer for $500. He’s pretty particular and he spent about 5 hours working on it. I’m still playing with the adjustment on the Rancho’s, but after 4,000 miles I’m good with it. If I did it again I’d probably go sulastics with the Fox’s. I had 250 lbs in the bed a few days ago, and it really rode nice. I spent most of the weekend driving a ‘17 Tahoe and a ‘19 Expedition that both had the magnetic suspension. I’m not so sure I didn’t feel more bumps on the highway in them then I did my F250. That new Expedition is pretty sweet, btw.
 
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Old Dec 3, 2018 | 07:52 PM
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Originally Posted by mothnuts
I’d definitely recommend changing shocks. Until you get the factory shocks off and compress them by hand, you really don’t realize how pathetic they really are. It’s pretty sad. I put Fox 2.0 on my ‘17, and when I traded for my ‘19 I went with Rancho 9000 XL’s with Sulastic shackles. I had a local a mechanic swap that, the rear blocks, and the steering stabilizer for $500. He’s pretty particular and he spent about 5 hours working on it. I’m still playing with the adjustment on the Rancho’s, but after 4,000 miles I’m good with it. If I did it again I’d probably go sulastics with the Fox’s. I had 250 lbs in the bed a few days ago, and it really rode nice. I spent most of the weekend driving a ‘17 Tahoe and a ‘19 Expedition that both had the magnetic suspension. I’m not so sure I didn’t feel more bumps on the highway in them then I did my F250. That new Expedition is pretty sweet, btw.
any reccomendations on blocks or steering stabilizer?
 
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Old Dec 3, 2018 | 08:05 PM
  #15  
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mothnuts
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Originally Posted by moynihan1129

any reccomendations on blocks or steering stabilizer?
I put the 1.5” shorter PMF blocks with the taper to almost level the pickup without messing with the front end. I had the shorter Ford blocks on my ‘17, but fought a vibration issue. I’m really happy with these so far. I’m completely sold on the Fox 2.0 steering stabilizer. I had bump steer on my ‘17 from almost day 1, and the Fox all but eliminated it. My ‘19 was perfect, but after seeing the difference between the Fox and Stock on the previous pickup, I went ahead and changed it while we were doing everything else. I swear it makes it steer a little easier, but it’s probably all in my head.
 
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