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Old 07-13-2015, 08:29 AM   #1
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Need shorter leaf springs

Long story, but it appears P.O. changed the axle on my 55 FC and my trailer now sits several inches higher than everyone else's. While the increased ground clearance is nice (particularly when installing new tanks, replacing belly pan, etc) I have a storage issue that makes it beneficial to reduce the height by 2 inches.
The axle is tubular, with susbtantial leaf springs u-bolted under the axle. I am not interested in going to a torsion axle so it seems the simplest option would be to replace the leaf springs with shorter ones. Current springs are 36 inches eye to eye and nearly 7 inches tall (axle to eye). They have 8 leaves in them. I have not been able to find anything similar (particularly the 36 inch length). BTW I have 8 inches of clearance between the top if the tire and the wheel well.
Anyone have a source for long springs?
Can a suspension shop modify the ones I have?
Is there an easier way to lower the trailer?

Thanks in advance.
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Old 07-13-2015, 09:25 AM   #2
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If the axle is a straight axle, I would replace it with a 4" drop axle. A 2" drop is also available.

I would be cheaper than relocating the spring mounts, which is a major welding job.
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Old 07-13-2015, 09:38 AM   #3
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I would take it to a spring shop. First question the 8 leaves and the load rating on the current springs and then discuss reworking the spring to your needs.

Sounds like the current springs may be over rated a bit.
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Old 07-13-2015, 09:59 AM   #4
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May be remove a leaf on each side.

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Old 07-13-2015, 10:24 AM   #5
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As HowieE suggests, an old full line spring shop would be your best source of springs and modifications. They build custom springs on site in general.
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Old 07-13-2015, 10:26 AM   #6
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Thanks.
No desire to replace axle.
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Old 07-13-2015, 11:37 AM   #7
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a drop center axle is what came with the trailer when new . The straight tube axle was more than likely put under there to give the trailer more ground clearance , 4 inch drop axles are relatively inexpensive and easy to change out . Can probably use your old backing plates and hubs on the drop center axle .
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Old 07-13-2015, 12:04 PM   #8
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Why not use lowering blocks and longer U bolts as used on autos?


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Old 07-14-2015, 06:49 AM   #9
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Great idea

[QUOTE=Jim Foster;1651315]Why not use lowering blocks and longer U bolts as used on autos?


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This seems like a simple and inexpensive solution. Any reason not to do this?
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Old 07-14-2015, 07:29 AM   #10
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Mount, the axle on top of the springs, not below like it
probably
is.
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Old 07-14-2015, 08:01 AM   #11
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Ding Ding Ding we have a winner folks. If the axle won't hit the bottom of the trailer, when you hit a bump then put it on top of the springs. Springs can be cut down with a chop saw and the edges ground smooth. You can remove leaves to a point but if you remove too many the springs will be too weak. I did this very same thing on a motorcycle trailer. I would get new U bolts to make sure they won't fail.

Perry

Quote:
Originally Posted by Melody Ranch View Post
Mount, the axle on top of the springs, not below like it
probably
is.
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Old 07-14-2015, 10:10 AM   #12
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Ding Ding Ding. The OP says the springs are mounted under the axle.
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Old 07-14-2015, 11:07 AM   #13
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A simple spacer can be made to shim the axle up. A photo would help here.

Perry
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Old 07-14-2015, 12:26 PM   #14
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Nope

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Originally Posted by perryg114 View Post
Ding Ding Ding we have a winner folks. If the axle won't hit the bottom of the trailer, when you hit a bump then put it on top of the springs. Springs can be cut down with a chop saw and the edges ground smooth. You can remove leaves to a point but if you remove too many the springs will be too weak. I did this very same thing on a motorcycle trailer. I would get new U bolts to make sure they won't fail.

Perry
Axle is aleady on top of springs. Spacer seems like a good solution.
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