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Old 10-08-2015, 10:00 AM   #21
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Kenny kustom, I guess the OP didn't see your post #12, or my post #4. Replacing the axle blocks would be a heck of a lot cheaper than the Kelderman air ride, if he only needs just a little clearance. I am still not sure how functional removing the spring leaf is gonna work out.
I'm told that the blocks on 2011 and later trucks can't be swapped out like that. Something about driveline shudder. I know it was easily done pre-2011, but how about the newer trucks? Do you guys know anyone who has swapped the blocks from a 250 into a 350 on a 2011 or newer Super Duty?
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Old 10-08-2015, 10:09 AM   #22
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What is the situation of your carport? Any chance of raising it a couple inches? If it's a freestanding type, would think it would be fairly easy and cheap to raise.
'Carport' was a poor choice of words on my part, and now I cannot edit my original post. It's actually a 100' by 40' open heavy steel building intended to store farm implements. No rain or direct sun ever hits the fiver when it's parked under there.

A few minutes attacking the ground with a bobcat would fix the problem but it's not my property...
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Old 10-08-2015, 10:45 AM   #23
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I'm told that the blocks on 2011 and later trucks can't be swapped out like that. Something about driveline shudder. I know it was easily done pre-2011, but how about the newer trucks? Do you guys know anyone who has swapped the blocks from a 250 into a 350 on a 2011 or newer Super Duty?
Interesting. The most recent articles that I found on that are from 2012. Maybe it is not doable for the newer trucks. I do intend to check into it more when we get a new 1 ton SRW, but not even sure of the make at this time.
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Old 10-08-2015, 11:09 AM   #24
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Thanks everyone, I'm going to try removing those aux springs. I'll have to level the truck manually with the compressor but that shouldn't be a problem.

My term 'carport' was kind of a misnomer...it's roughly 100 feet long and 40 feet wide, made of heavy steel beams and heavy-gauge metal roof. It's intended to cover farm implements--planters, plows, hay wagons, that sort of thing. I pull in from one side and park the fiver with roughly 5 feet of roof overhang at either end.

I'll let you all know how it goes!
Honestly, you best bet is to do what others mentioned. Swap the 4" rear blocks with oem 2" F250 blocks. That will level out your truck while and since you already have airbags, you can use them to regain any height you lose.

Bob mentioned something about the front lower as well when doing this. That is totally incorrect. I had a 2011 F250 and did the opposite by adding F350 blocks to give it a high stance in the back (like the stock f350).

There are probably 200 F250 owners (from 2011-2016) that would be happy to give their their old blocks.

Actually, I think I still have mine sitting in the back shed. If you want to pay for shipping, I'd be happy to send them to you.
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Old 10-08-2015, 11:34 AM   #25
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Originally Posted by MtnGuy View Post
Kenny kustom, I guess the OP didn't see your post #12, or my post #4. Replacing the axle blocks would be a heck of a lot cheaper than the Kelderman air ride, if he only needs just a little clearance. I am still not sure how functional removing the spring leaf is gonna work out.

I know!!
But that kelderman setup would be awesome.

Removing the overload spring won't lower the truck, unless he has enough pin weight to actually be touching the ol.



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Old 10-08-2015, 12:17 PM   #26
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I thought air ride pin boxes RAISE the front of the fifth?


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Post #11.

Dumping the air lowers it from normal ride height.
My air ride box in the picture can be had brand new for less than $800, far less work and cost than air bagging the truck. Plus the gain in ride quality is far superior than a standard box.
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Old 10-08-2015, 02:00 PM   #27
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Or just get some $50-free 2" F250 blocks and be done.....since you already have bags.
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Old 10-08-2015, 04:54 PM   #28
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Cmon. I want to see someone do a kelderman kit.. Before I do.


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Old 10-08-2015, 10:06 PM   #29
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Honestly, you best bet is to do what others mentioned. Swap the 4" rear blocks with oem 2" F250 blocks. That will level out your truck while and since you already have airbags, you can use them to regain any height you lose.

Bob mentioned something about the front lower as well when doing this. That is totally incorrect. I had a 2011 F250 and did the opposite by adding F350 blocks to give it a high stance in the back (like the stock f350).

There are probably 200 F250 owners (from 2011-2016) that would be happy to give their their old blocks.

Actually, I think I still have mine sitting in the back shed. If you want to pay for shipping, I'd be happy to send them to you.
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Old 10-09-2015, 07:51 AM   #30
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I'm told that the blocks on 2011 and later trucks can't be swapped out like that. Something about driveline shudder. I know it was easily done pre-2011, but how about the newer trucks? Do you guys know anyone who has swapped the blocks from a 250 into a 350 on a 2011 or newer Super Duty?
Wouldn't swapping to 2" blocks be the exact same change in driveline geometry as hauling a load that squatted you 2"? Looks like if you had shudder by changing blocks you'd have shudder when hauling a load.
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Old 10-09-2015, 09:44 AM   #31
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Wouldn't swapping to 2" blocks be the exact same change in driveline geometry as hauling a load that squatted you 2"? Looks like if you had shudder by changing blocks you'd have shudder when hauling a load.
in regards to the 2011+ F250/350 SRW, that isn't an issue.

This is a topic discuss in depth on FTE (Ford-Trucks.com) in the 6.7L section very often. MANY MANY have done this mod to level their F350. There is NO DIFFERENCE between the F250 and F350 other than the 4" block and the overload spring (which can also be added to the F250 if ordered with the trailer package).

The best option for him would be to simply change out to the F250 block as suggested by others and myself.

Dr Steve, I did not receive your PM.
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Old 10-09-2015, 09:53 AM   #32
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Agreed, Overload spring works when hitting road hazards as well as static load.
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Old 10-09-2015, 09:59 AM   #33
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Originally Posted by IronCobra View Post
in regards to the 2011+ F250/350 SRW, that isn't an issue.

This is a topic discuss in depth on FTE (Ford-Trucks.com) in the 6.7L section very often. MANY MANY have done this mod to level their F350. There is NO DIFFERENCE between the F250 and F350 other than the 4" block and the overload spring (which can also be added to the F250 if ordered with the trailer package).

The best option for him would be to simply change out to the F250 block as suggested by others and myself.

Dr Steve, I did not receive your PM.

Iron Cobra,

I have not spent as much time on other forums but I am off the same opinion, I have the camper package with overloads, extra leaf, rear stabilizer and extra heavy front springs. My truck is the same a F 350 and is derated below 10,000 lbs to save on annual inspections and tag fees.

I stated above and again taking out an overload is not the safest option, blocks would be. If the driveshaft does not have enough play for this mod any large bump or rut would do it in.
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Old 10-11-2015, 07:44 AM   #34
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Originally Posted by IronCobra View Post
in regards to the 2011+ F250/350 SRW, that isn't an issue.

This is a topic discuss in depth on FTE (Ford-Trucks.com) in the 6.7L section very often. MANY MANY have done this mod to level their F350. There is NO DIFFERENCE between the F250 and F350 other than the 4" block and the overload spring (which can also be added to the F250 if ordered with the trailer package).

The best option for him would be to simply change out to the F250 block as suggested by others and myself.

Dr Steve, I did not receive your PM.
Thanks for the info...I just tried another pm.
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Old 10-12-2015, 08:25 AM   #35
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UPDATE: Removing the springs didn't work...

We returned from our trip to Corinth Recreation Area in Bankhead National Forest (beautiful place, that will be a post in another forum). My idea of removing the aux springs didn't work. My front AC was still too high, so I once again had to lower the truck tire pressure from 80 to 30.

Next option: Swapping in the blocks that IronCobra () will be sending my way.
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Old 10-12-2015, 08:37 AM   #36
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My idea of removing the aux springs didn't work. My front AC was still too high, so I once again had to lower the truck tire pressure from 80 to 30.

Next option: Swapping in the blocks that IronCobra () will be sending my way.


Ya don't say..... I thought for sure, I read somewhere that it wouldn't help with height...

Just ribbin ya!



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Old 10-12-2015, 09:33 AM   #37
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Ya don't say..... I thought for sure, I read somewhere that it wouldn't help with height...

Just ribbin ya!



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Oh yes, sometimes I make it easy to do that...
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Old 10-12-2015, 12:06 PM   #38
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We returned from our trip to Corinth Recreation Area in Bankhead National Forest (beautiful place, that will be a post in another forum). My idea of removing the aux springs didn't work. My front AC was still too high, so I once again had to lower the truck tire pressure from 80 to 30.

Next option: Swapping in the blocks that IronCobra () will be sending my way.
Bad news. Blocks were unlawfully removed from my storage...along with other stuff...... Sorry.
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Old 10-12-2015, 01:20 PM   #39
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http://www.rockymountainsusp.com/sus...f250-f350.html


Pick your poison.


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Old 10-12-2015, 01:42 PM   #40
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I guess it wouldn't help or you have already done or it will raise the front somehow...but did you lower the 5er tires...temporarily of course


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