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Old 09-01-2018, 01:42 PM   #1
busterbrown
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Axle Spring Length

We just got to the campground and noticed a broken passenger side rear axle spring. Must have just happened as we entered the park as there is no damage to the trailer. I was able to unhitch the trailer and am on my way back home for jacks and tools. To get the correct replacement spring, I need to know the unloaded length on this one off a 3500 lb axle. An help is appreciated. Also, anything special to know to remove this axle spring? Haven't ever removed a trailer spring before.

The coach in question is the one listed in my signature with Keysyone's standard wide spaced axles
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Old 09-01-2018, 02:40 PM   #2
Pull Toy
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Sorry for your misfortune, glad there was no damage or injuries

If you can "unload the weight" on the remaining good rear spring by lifting the frame a little, you should be all set to get close measurement. Also it probably wouldn't hurt to take the broken leaf with you.

If you haven't done springs yet, just remember to chock all grounded wheels, and support the broken end axle with a good adjustable jack to help setting the hardware. I haven't done it in quite a few years, but I remember using a come-along also to help position the axle for re-assembly.

Be SAFE, and Good Luck,
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Old 09-01-2018, 02:55 PM   #3
Javi
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Six bolts.. 4 under the axle ( 2 on each U-bolt) and one on each end of the spring.. You can put a jack or jack stand under the axle to hold it up.. Replace the spring and retighten the bolts..

I generally would have removed the U-bolts first and then the spring hangers... Be sure to check out the shackles for wear..

Less than a six pack job even with a buddy helping..
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Old 09-01-2018, 03:24 PM   #4
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Thanks for the advice Javi and Pull Toy. Is it recommended to replace the ubolts along with any other hardware for a spring replacement? I haven't attempted to remove the ubolts so I'm hopeful they're not seized on. I may buy a set just in case. I was planning on replacing all the shackles, bushings, and bolts in the spring with a wet bolt kit. Unfortunately, the coach is laid up at a campground and I have no tools there. So, it will just be an emergency repair. Spoke with DNR personnel and they told me I can keep the trailer parked on site til Wednesday (we're reserved til Monday) without additional fees. I can't even get the new leaf spring til Tuesday morning. I hope to have it all disassembled by tomorrow. Oh, another thought that crossed my mind, should I replace both springs on the passenger side? 1 failed just after 2 years. What says the other spring wont too? And why only after 2 years of use?
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Old 09-01-2018, 03:57 PM   #5
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Can't comment on the early spring failure but you might want to get a deep socket for the U bolts. Last ones I did the bolts protruded about 1 1/2" past the nuts.
As Javi mentioned not a challenging task. If you have the basic tools.
Good luck on the repair.
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Old 09-01-2018, 06:01 PM   #6
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You need a heavy jack to lift the frame and also helps to have a smaller jack for the axle. It might also help to have a second heavy jack if you can't get enough lift with the first one, and some blocks will also help. I replaced one on our rig a while back and reused the u-bolts, no problem. I was fortunate that not too far away there was a Redneck Trailer supply and they had what I needed. Yes, bring the broken spring pack with you.
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Old 09-01-2018, 06:56 PM   #7
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Just got back to the trailer. Never noticed til niw but the leaf spring is a single spring...not a traditional spring pack. Unbelievable how cheap these trailers are made. Come next spring, I'm contemplating upgrading both axle and spring assemblies.
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Old 09-01-2018, 08:10 PM   #8
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I'm having a difficult time sourcing a single leaf spring for my 3500 lb axles. Etrailer doesn't stock a single leaf. Anyone know if a multiple leaf spring for the same size axle will be compatible? Would I have to change out both springs if they are?
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Old 09-02-2018, 03:06 AM   #9
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I noticed you are from SE Michigan. Toledo spring will make what you need. If your from farther north. the Detroit area may a spring place that will do the same.

Jack
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Old 09-02-2018, 06:10 AM   #10
busterbrown
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Quote:
Originally Posted by cavediver View Post
I noticed you are from SE Michigan. Toledo spring will make what you need. If your from farther north. the Detroit area may a spring place that will do the same.

Jack
My trailer is up near Lapeer, Mi. I live about 20 miles north of Detroit. Toledo is a bit far unfortunately. It seams though that this single leaf spring is not readily available. I've been talking to a Keystone Bullet owner on a FB forum who is stranded in Flagstaff, AZ for the same reason. Said his only option was to order directly from Keystone through a local dealer. This news is not making me happy. I can't believe that Keystone (Dexter) is the only manufacturer with trailers utilizing this single leaf spring suspension setup. Because it's Sunday on a Holiday weekend, I'm unable to contact any local axle shops near me. If anyone has an idea of how to acquire this single leaf spring (outside of ordering it from Keystone), I'm all ears.

This is the OEM mono-leaf spring I need to source:

http://www.trekwood.com/products/943...30E-1750-3500-
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2017 RAM 2500 Laramie Mega Cab 4x4 Hemi 6.4L
2008 GMC Yukon XL Denali (SOLD)
Hensley SwiftArrow Control Hitch with 1000 lb Spring Bars
Me, DW, (3) little DS's, and 1 rambunctious Boston Terrier

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