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Old 04-15-2019, 02:56 PM   #267
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Help spec a new F-250

Went through the whole F250 v F350 thing last summer when we were awaiting delivery on our new 14000 GVWR TT. We only have garage parking in the city for 2 cars so adding a super duty as a towing vehicle only was not an option (hanger outside of town for TT). Honestly, I could not tell any difference in ride comfort between the 250 and 350 on the test drive but loved the diesel towing specs and acceleration so knew the 350 was the only option after the dealer visit. Installed 4 corner Kelderman air ride with up to 8 inch on the fly adjustable ride height so as to fit in our garage. Bonus is that the highway ride quality is now on par with our old airmatic equipped Ď14 Mercedes GL. Not an inexpensive solution but much more affordable than adding a 3rd vehicle.

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Old 04-15-2019, 03:31 PM   #268
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I also drove a 250 and 350 before ordering. I couldn't tell a difference, either, when it came to the ride. I chose a 350 gasser with 4.30 gears. I also got snow plow and camper prep springs. I think the truck rides just fine...I use my truck for more than just the AS. Just the other day, I pulled a 12k pound trailer on the bumper and had no complaints.
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Old 04-15-2019, 03:57 PM   #269
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Ride improvement

After several months and 2K miles, I can report the Sulastic hangars are working as desired: takes the "bite" out of the F350 unladen ride. about 1200 miles was across "suboptimal" Alaska highway conditions. I really like the idea of the air suspension for height adjustment, though. In the mean time, the Sulastic hangars "cusion" the ride and mitigate unladen rear axle hop going over significant pavement transitions.
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Old 04-15-2019, 05:38 PM   #270
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Help spec a new F-250

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Originally Posted by pteck View Post
Yes, I did comment on the add on packages.

It's all for the sake of bringing some balance back into the dialogue that's common here - where more is more and more is always better.

As many of us know, more is just more. And more is not always better. Because there is always a cost. Either literal, or it tips the balance towards some quality at the detriment of another quality.

Payload capacity is one of those things. Boiled down, it's very much about spring rate. Sure there's other considerations, but it's more about that single parameter than many others.

It's no wonder, from sedans, to vans, to 1/2 ton trucks - they all generally have payload in the 900-1300lb range. As passenger cars first, ride quality is paramount.

Once a vehicle becomes more about performing laden work, ride quality is then a secondary factor as higher spring rates have to be there to support the load. Sure, there's been improvements and progressive springs. But it only can go so far as there's limited suspension stroke to work with. Too much progression, leaves too little spring travel for laden work.

One can have it all, payload and ride quality, by choosing the just right vehicle for the intended use. If that's the F250 - more power to you. They've come a long way and can be comfortable and capable.

I would just temper those that are then staring at the F350 on the account of "more".


Actually a F350 and a F250 ride the same unloaded.As the weight increases the F350 spring pack becomes more capable.Thus the term progressive leaf springs is achieved.
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Old 04-15-2019, 07:07 PM   #271
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On a side note; the tires can make a pretty large difference in ride quality, too. Especially if you have street legal "off road" tires as they have a very stiff sidewall.
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Old 04-15-2019, 07:47 PM   #272
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Actually a F350 and a F250 ride the same unloaded.As the weight increases the F350 spring pack becomes more capable.Thus the term progressive leaf springs is achieved.
Yeah, if you actually read my post, I acknowledged that.

The tender part of the travel only goes so far. We've all experienced bigger bumps where 1-2" worth of plush travel gets used in a hurry. Then your teeth finds the firmer leaf pack.

There's no getting around the fact that high spring rates are a detriment to ride quality. That solid front axle is also there for capacity and durability. Not ride quality.

If one actually carries the load it was designed for, the ride can be reasonably good. Just don't expect that same ride empty.
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Old 04-15-2019, 08:01 PM   #273
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Originally Posted by pteck View Post
Yeah, if you actually read my post, I acknowledged that.

The tender part of the travel only goes so far. There's bigger bumps in the road where 1-2" worth of plush travel get used in a hurry and then your teeth will find the firmer leaf pack. Ride quality isn't determined by a minimal example of smooth roads.

There's no getting around the fact that high spring rates are a detriment to ride quality. That solid front axle also is there for durability. Not ride quality.

If one actually carries the load it was designed for, the ride can be reasonably good. Just don't expect that same ride empty.

I read your post.

Thatís not actually true.The primary spring in the progressive spring pack is soft one and thatís the one you are using when unloaded.The spring pack is progressive and becomes more capable as more weight is applied.

You evidently have not driven a new F250 or F350 much less pulled a larger Airstream trailer with one.
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Old 04-15-2019, 08:17 PM   #274
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FWIW I drove both the 250 and the 350, same model year, and felt a difference. I realized later that I hadnít checked the window stickers closely and couldnít say whether they had different options that may have contributed to the difference in road feel (such as camper or snowplow prep).

A friend who has a 2016 250 rode in mine a few weeks ago and couldnít believe it was a Superduty. When I spoke to him last week he was on his way to the dealer to see what heíd get in trade toward a MY18 or 19.

I think thereís a lot of posturing, academic speculation, and navel-gazing on these threads, and when itís kept civil itís all fine and maybe someone learns something. But it often isnít kept civil and I would like to keep this thread a productive one for the time it has left. Before the thread descends into bickering, letís just say that Superduty trucks are not SUVs and vice versa, and this thread is about the process and details of speccing the F-250.

Thanks.
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Old 04-15-2019, 08:22 PM   #275
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Help spec a new F-250

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FWIW I drove both the 250 and the 350, same model year, and felt a difference. I realized later that I hadnít checked the window stickers closely and couldnít say whether they had different options that may have contributed to the difference in road feel (such as camper or snowplow prep).

A friend who has a 2016 250 rode in mine a few weeks ago and couldnít believe it was a Superduty. When I spoke to him last week he was on his way to the dealer to see what heíd get in trade toward a MY18 or 19.

I think thereís a lot of posturing, academic speculation, and navel-gazing on these threads, and when itís kept civil itís all fine and maybe someone learns something. But it often isnít kept civil and I would like to keep this thread a productive one for the time it has left. Before the thread descends into bickering, letís just say that Superduty trucks are not SUVs and vice versa, and this thread is about the process and details of speccing the F-250.

Thanks.


Was this a 2017-2019 F350 Superduty that you drove? If both were equipped with the same options they would actually ride the same.
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Old 04-15-2019, 08:38 PM   #276
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Yeah, both 2018s. Like I saidóI didnít pay enough attention to their options. I did know enough to check that they were both 4x4s and gas engines, but they may have different tires and so forth too. My bad. Still would have ended up with the 250 though
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Old 04-15-2019, 11:56 PM   #277
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I read your post.

Thatís not actually true.The primary spring in the progressive spring pack is soft one and thatís the one you are using when unloaded.The spring pack is progressive and becomes more capable as more weight is applied.

You evidently have not driven a new F250 or F350 much less pulled a larger Airstream trailer with one.
Sounds like you may have bought into marketing material without understanding how a progressive pack actually works.

It's based upon the amount of suspension deflection. Unladen, yes it rides on the fluffy soft leaf at the very top part of the suspension stroke. Laden, and with the fluffy leaf compressed/deflected, it rides primarily on the HD pack.

When you hit a big enough bump unladen, it will get into the HD pack that then gives you a nice kick.

F350 rides like an F250? That's a new one.
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Old 04-16-2019, 02:19 PM   #278
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Help spec a new F-250

Quote:
Originally Posted by pteck View Post
Sounds like you may have bought into marketing material without understanding how a progressive pack actually works.



It's based upon the amount of suspension deflection. Unladen, yes it rides on the fluffy soft leaf at the very top part of the suspension stroke. Laden, and with the fluffy leaf compressed/deflected, it rides primarily on the HD pack.



When you hit a big enough bump unladen, it will get into the HD pack that then gives you a nice kick.



F350 rides like an F250? That's a new one.


Actually no.I have been in the automobile business for 45 years.I am also an ASE certified technician.Member of the Chevrolet truck Hall of Fame.Certified in medium and H.D trucks.I have done consulting for GM,Ford,Mercedes Benz,Porsche,Ferrari and Lamborghini.I have studied suspension theory with some of the best in the industry and have driven on most major race tracks in the USA and Europe.
I have owned a new 2012,2015 and 2017 Ford F350 6.7 SuperCrewís and will have a 2020 10 spd auto when released.

Please continue to tell me more of you 2017-2019 Ford Superduty progressive spring knowledge.

It appears you pull with a 10 year old Lexus SUV with 33í tires. Hmmm

Peace out
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Old 04-16-2019, 02:37 PM   #279
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Actually no.I have been in the automobile business for 45 years.I am also an ASE certified technician.Member of the Chevrolet truck Hall of Fame.Certified in medium and H.D trucks.I have done consulting for GM,Ford,Mercedes Benz,Porsche,Ferrari and Lamborghini.I have studied suspension theory with some of the best in the industry and have driven on most major race tracks in the USA and Europe.
I have owned a new 2012,2015 and 2017 Ford F350 6.7 SuperCrewís and will have a 2020 10 spd auto when released.

Please continue to tell me more of you 2017-2019 Ford Superduty progressive spring knowledge.

It appears you pull with a 10 year old Lexus SUV with 33í tires. Hmmm

Peace out
I want to buy you beer!
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Old 04-16-2019, 02:58 PM   #280
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Quote:
Originally Posted by Moflash View Post
Actually no.I have been in the automobile business for 45 years.I am also an ASE certified technician.Member of the Chevrolet truck Hall of Fame.Certified in medium and H.D trucks.I have done consulting for GM,Ford,Mercedes Benz,Porsche,Ferrari and Lamborghini.I have studied suspension theory with some of the best in the industry and have driven on most major race tracks in the USA and Europe.
I have owned a new 2012,2015 and 2017 Ford F350 6.7 SuperCrew’s and will have a 2020 10 spd auto when released.

Please continue to tell me more of you 2017-2019 Ford Superduty progressive spring knowledge.

It appears you pull with a 10 year old Lexus SUV with 33’ tires. Hmmm

Peace out

So rather than lay out your credentials. How about you spend some time to tell us how this works? And how a higher spring leafs on an F350 is to ride the same as an F250?

I'm sure those trucks ride as great as my 10 yr old Lexus with your consultation.
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