Finally doing my 08 Leaf Spring Conversion - Ford Powerstroke Diesel Forum
Suspension & Steering Discuss OEM & aftermarket suspension, lifts, air ride suspension, shocks, steering components, etc.

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post #1 of 65 Old 06-13-2010, 12:33 PM Thread Starter
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Finally doing my 08 Leaf Spring Conversion

Well I finally found someone to build the conversion hangers for me to put 08+ leaf springs on a 99-07 model truck. My parts should be in tomorrow, will probably be next week before I get started. For anyone that didn't catch any of my old thread, I'll try to answer a few questions ahead of time. The main advantage of the conversion is In 2008 the F-250/350 received a longer rear spring that increased payload capacity as well as increasing the ride quality greatly. The 08+ leaf spring is 8" longer than the 99-07 leaf spring. A disadvantage of the 99-07 leaf spring is that the axle is not centered on the leaf spring. In other words, from the axle to the rear spring mount is 8" longer than it is from the axle to the front spring mounts, which adds to the axle wrap problem. The 08+ spring adds 8" to the front of the spring which puts the axle in the center of the leaf spring where it belongs.

First step will be to mount the spring hangers. They are designed to be set against the frame and use an existing bolt hole on the frame to line the hangers up correctly. Once they are lined up, its time to drill some holes. The hanger also takes into account the emergency brake cable, and is built to keep it functioning properly. I'll be posting pictures and adding to the write-up as the project progresses. In the meantime, here is a picture of what the hanger looks like. Feel free to contact me if you have any questions or need more information.


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post #2 of 65 Old 06-13-2010, 12:35 PM Thread Starter
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Hangers came in. I took a couple of pictures. I put a drink can in the picture for size reference. These things are big, well built, and heavy. Almost 25 pounds each!!!



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2005 F350 Crew Cab 4x4

PMF Rear Leaf Spring Conversion w/2011 Leaf Springs
20" Harley Wheels 305/55/20 Nitto Terra Grapplers
ARP Studs & EGR Delete from PowerStrokeMagic w/GearHead Tunes
Amp Research Steps, MBRP



"Two in the heart, and one in the head, I don't like repeat offenders, I like dead offenders!" -- Ted Nugent

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post #3 of 65 Old 06-13-2010, 01:14 PM Thread Starter
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Originally Posted by melmount View Post
can I get him to make me a set?
How much were they?
What or who is PMF?
Yes ha can definitely make them for you. PM me and I'll send you some info, since he's not a site sponsor.

2005 F350 Crew Cab 4x4

PMF Rear Leaf Spring Conversion w/2011 Leaf Springs
20" Harley Wheels 305/55/20 Nitto Terra Grapplers
ARP Studs & EGR Delete from PowerStrokeMagic w/GearHead Tunes
Amp Research Steps, MBRP



"Two in the heart, and one in the head, I don't like repeat offenders, I like dead offenders!" -- Ted Nugent
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post #4 of 65 Old 06-13-2010, 08:39 PM
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have you mounted them yet? please post pics when you do
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post #5 of 65 Old 06-13-2010, 08:43 PM
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im interested to know how the ride is gonna be helped... its on my to-do list

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post #6 of 65 Old 06-13-2010, 08:46 PM
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very much interested in this and the ease or lack thereof it takes to install??

please pm me the info so i can look into getting a set of these n let me knoe where you got the rear springs at.

thanks!



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post #7 of 65 Old 06-13-2010, 08:51 PM
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youll notice a difference in ride. one thing i dont like about my trucks ride is the little springy bounce i get unloaded. the longer leafs bounce a bit more on a sharp bump.


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post #8 of 65 Old 06-14-2010, 09:46 AM
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What type of leafs will you be going with, stock 08 leafs or aftermarket, like Deavers, etc...? Will you be using blocks for the lift or go all leaf?

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post #9 of 65 Old 06-14-2010, 09:51 AM
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Just saw your other post and I guess you are going with the factory 08 leafs. What size block will you be using?

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post #10 of 65 Old 06-14-2010, 10:01 AM Thread Starter
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Yeah I'm going do a traction block setup. I'm not exactly sure how much block I'm going to need. I'm going to get the leafs put in and then mock it up with some blocks, then order my traction blocks when I find out exactly what size I need. Probably in the 8" range.

2005 F350 Crew Cab 4x4

PMF Rear Leaf Spring Conversion w/2011 Leaf Springs
20" Harley Wheels 305/55/20 Nitto Terra Grapplers
ARP Studs & EGR Delete from PowerStrokeMagic w/GearHead Tunes
Amp Research Steps, MBRP



"Two in the heart, and one in the head, I don't like repeat offenders, I like dead offenders!" -- Ted Nugent
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