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2019 E450 2350 Rough Ride

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Re: 2019 E450 2350 Rough Ride
« Reply #45 on: August 11, 2019, 08:20:18 pm »
Thanks to input from Ron (and others) I decreased the psi in (E450, 2014 - PC 2350 with slide) to 62# front, 65# rear.  This, along with my Koni FSD shocks have made my E450 ride like a passenger car. Other info -
Shocks were installed 6 months ago along with Roadmaster front & rear sway bars and Roadmaster steering damper. Front end was aligned (needed new, taller adjusters) and BFGoodrich commercial tires have about 6,000 miles in now.  Prior to decreasing psi the ride was as jarring as before upgrades, now it's 100% improved.  This on a vehicle approaching 100,000 miles!



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  • OwnPC: Yes
  • NewUsed: Used
  • PurchDate: 3/7/2015
  • Model: 2552
  • ModelYear: 2011
  • Slide: Yes
  • IntColor: Tan/Cherry
  • ExtColor: Gray / White
  • Location: California
Re: 2019 E450 2350 Rough Ride
« Reply #46 on: August 12, 2019, 07:41:53 pm »
Dog yard, man do I envy you, the fsd didnít help me a bit.  I wish I had more knowledge on suspensions.  It might be an easy fix if I knew what I was looking at.


Ron Dittmer

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  • Ron and Irene
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    • My 2007 2350 Phoenix Cruiser
  • OwnPC: Yes
  • NewUsed: New
  • PurchDate: June 2007
  • Model: 2350 Ford
  • ModelYear: 2007
  • Slide: No
  • IntColor: Cherry Green&Gray
  • ExtColor: Full Body Gray
  • Location: N/E Illinois
Re: 2019 E450 2350 Rough Ride
« Reply #47 on: August 13, 2019, 05:47:20 pm »

I am very happy to read that you made a significant difference in the ride of your E450/2350.

Just for reference, here is my 2007 E350 with an 11,500 GVWR, 158" wheel base and an over-all length of 23'-8".  At a glance, you can see the entire house of model 2350 rests on the rear axle.  I also noted the "big-hitters" of our load.  Because of the spare tire and fresh water tank in the far back, the teeter-totter effect is notable as seen in the picture.  The front end is slightly lifted.  Our front axle is under-loaded while the rear axle is at it's limit, once being a little over the GAWR limit.  The actual weight numbers are taken from a truck scale.

As I previously mentioned, I will soon experiment replacing my E350 front coil springs with lower-rated ones with hopes to lower the front a bit to level the rig, along with providing a softer ride up front.  I am trying E150 front coil springs because as seen in the diagram, the front axle isn't carrying much of anything at all.  It carries less than an E150 van front axle GAWR.

Many people don't realize that the E350 and the E450 have the same front GAWR. All of the difference in load is related to the rear leaf springs and the thicker frame of the E450 chassis to carry it.  The front suspension including the front coil springs are identical between the E350 Super-Duty chassis and E450 chassis.  So my stock E350 front suspension offers a rougher ride than you with longer PCs that place more weight on the front suspension.
« Last Edit: August 14, 2019, 12:30:05 am by Ron Dittmer »
Ron (& Irene) Dittmer