Frames and axles. - Ford Powerstroke Diesel Forum
 
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post #1 of 10 Old 01-23-2012, 05:23 PM Thread Starter
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Frames and axles.

I've read on another forum that the only difference between the F-250 and F-350 with the 6.4L is that the F-350 has an additional leaf in its rear axle spring. Any truth to that? I always thought from 3/4 ton to 1 ton there would be a bigger frame and different axles, though I know both use the same Sterling 10.5 unit out back. Dana 60s in the front correct?
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post #2 of 10 Old 01-23-2012, 08:19 PM
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Really, the only difference is a lower block in the back of the f250.

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post #3 of 10 Old 01-24-2012, 12:10 AM
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Springs vary depending on the package. The main difference is the block and has been for many years. Now if you go to a DRW, you will get a larger axle in the rear.


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post #4 of 10 Old 01-24-2012, 06:01 PM Thread Starter
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Quote:
Originally Posted by WildStyle View Post
Really, the only difference is a lower block in the back of the f250.
By lower block you mean....???

(newb here, sorry)
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post #5 of 10 Old 01-24-2012, 06:15 PM
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Quote:
Originally Posted by MarcusMiller View Post
By lower block you mean....???

(newb here, sorry)
F250 has a 3" lift block under the rear springs. F350 has a 4" block(or is it 5?)

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post #6 of 10 Old 01-24-2012, 11:38 PM
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So if you put in a larger block in the rear what would you need to put in the front to keep the truck level? For instance if the F250 has a 3" block in the rear and you changed it to a 4" would you need to raise the front 1" or more or is here more to doing this?

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post #7 of 10 Old 01-25-2012, 12:34 AM
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Not sure about the newer ones, but the older ones...nothing. They just sat higher in the back. These trucks almost always sit nose low anyway.
-Aaron

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post #8 of 10 Old 01-25-2012, 07:12 AM
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The other difference is the GVW tag on the door, which is why a lot of us have the F350.
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post #9 of 10 Old 01-25-2012, 07:25 AM
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Originally Posted by shell_guy View Post
The other difference is the GVW tag on the door, which is why a lot of us have the F350.
Or f250 I know in some locations the 350 requires special plates or stickers that the 250 doesn't.

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post #10 of 10 Old 01-25-2012, 02:10 PM
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Can be different even between just 250 models or just 350 models. I have the snowplow prep package on my truck and it sits higher than the identical truck without the snowplow package. If you go to a dealer that has a bunch of trucks parked in the parking lot style you will see a difference in heights of truck. No the parking lot was not the cause of difference. I guess what I am getting at is there are multiple setups (3-5) I would guess within the same model year.


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