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55 F250 Rear Suspension Questions

 
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Old 12-05-2010, 08:40 AM
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55 F250 Rear Suspension Questions

I was looking closer at my rear suspension and it seems to be different than others I have seen. I briefly looked for other examples, but nothing seemed to match quite like mine. Could you enlighten me on this suspension? I figure to leave it like it is unless there are problems. By the way the first owner had a Knapheide bed installed in it. (never met him and the previous owner passed away)




I can never imagine the bumper ever getting down to the axle.
 
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Old 12-05-2010, 09:01 AM
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That upper 6 springs and the 2 upper stack stops on the frame were added later along with the super long U bolts .. i have a 55 F250 so i know just what been added to yours. That plate on the very top of the stack that the Ubolt top bend rides in should be on top of the orig lower stack. And much shorter U bolts.
 
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Old 12-05-2010, 09:03 AM
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I don't see anything unusual although I'm more familiar with the F-3 than the F-250. The larger trucks had more spring capacity for heavier loads. What do you find different?
 
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Old 12-05-2010, 09:06 AM
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My 48 F-3 had 13 leaf springs in the rear....
 
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Old 12-05-2010, 09:17 AM
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Originally Posted by GreatNorthWoods View Post
I don't see anything unusual although I'm more familiar with the F-3 than the F-250. The larger trucks had more spring capacity for heavier loads. What do you find different?
This truck has the second set of springs. All others I have seen only have one set. It makes sense that extra support was added. I would assume when the Knapheide bed was installed.

I was told that when they loaded it with grain that they would make this truck into a dump bed by attaching a chain to the front and lifting the truck with a tractor to empty the bed.

Of course I will never put that much load on this truck, so I need to ponder whether to remove the extra support....I a long way from having to make that decision though...
 
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Old 12-05-2010, 05:49 PM
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Don't know if Ford offered overload springs back then, but they are simalar to the overloads offered on latter trucks. My 96 has factory overloads simalar to those. They overload brackets look like a factory item or maybe an aftermarket set up...

Paul
 
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Old 12-05-2010, 07:54 PM
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New trucks use a very close 2 stage design like that setup but a far softer base stack to give a soft ride when unloaded. That looks like a stock F250 bottom stack. That upper set won't come into play till you have 3/4 of a ton on that puppy. I'd leave them if you plan on carrying some 3 ton loads.
 
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Old 12-05-2010, 11:05 PM
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Originally Posted by FORD14TPU View Post
New trucks use a very close 2 stage design like that setup but a far softer base stack to give a soft ride when unloaded. That looks like a stock F250 bottom stack. That upper set won't come into play till you have 3/4 of a ton on that puppy. I'd leave them if you plan on carrying some 3 ton loads.
I was looking closer at them and realized that they didn't affect ride height and wouldn't be used until the load got heavy, so I probably will leave them. Of course once the truck is back together I will need to see how much weight it takes to put those puppies into play... I can't wait until that day, but I'm still in the disassembly phase of this project.... I need to win the lottery so I can spend more time in the garage.
 
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Old 12-06-2010, 05:17 PM
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I have a 54 F250 with the overload springs on it. It has the express box. I always assumed they were original. Many years ago, I before I tore it apart for some upgrades I went to a local quarry and pick up a "little" load of rock. It was only a couple of miles from home and I would go slow anyway. I ended up with almost 2 tons on it. That was a scary trip.

I'll have to look, but if I remember right the pics here look like mine.
 
 
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