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Any Regrets Flipping Axles?

MACHZER
Explorer
Explorer
Hello,

I am about to flip my axles for more ground clearance.TT

Have you done yours and regretted doing it, if so why?

Thanks
Clandeboye , Manitoba
28 REPLIES 28

Snowman9000
Explorer
Explorer
Depends which part is over the other! ๐Ÿ™‚ ๐Ÿ™‚

Obviously they say overslung to mean the spring is over the axle.
Currently RV-less but not done yet.

mobeewan
Explorer
Explorer
Am i reading this wrong? It looks like that per Dexters instructions, bump stops are only required when axles are "slung" over the springs

14. Reinstall wheel and tire; lower vehicle to ground.
Recheck wheel nut and U-bolt nut torque. Check for
proper braking function. Recheck wheel nut torque
periodically thereafter.
Note: When converting from underslung to
overslung
, the installation of bump stops to prevent
suspension over travel and resulting possible spring
damage or breakage is highly recommended. Axle
travel should be limited to the amount available prior
to mounting conversion.
When converting from overslung to underslung,
adequate suspension travel is required to prevent
the axle(s) from bottoming out prematurely,
resulting in axle bending.
Note: The Dexter Operation Maintenance Service
Manual is available for downloading at
www.dexteraxle.com.

Snowman9000
Explorer
Explorer
Spike, the issue is this.

You start out with say 3 inches of travel before the axle hits the frame.
You move the axle underneath. Now you have 6 inches of travel available.
The springs are not meant to flex that far.
Currently RV-less but not done yet.

spike99
Explorer
Explorer
I'm confused over the "add bump stops" comments.

If your trailer has axle tube "on top" of leaf spring packs and NO bump stops (as seen within - click here - ), then simply simply re-position axle "under" the leaf spring packs. If round axle tube, then tube saddles should be welded ontop of axle. I don't trust bolt on under/over kits. Due to axle arch / bow shape, the axle isn't really flipped. It's actually re-positioned under the leaf spring packs. For example on my boat trailer - click here -

If you are concerned current leaf spring packs having "too much" compression, simply +1 "up size" to their next available size. For example, 3,200 lbs leaf spring packs to 3,400 lbs leaf spring packs. Especially if you want more compression strength safety buffer for those double / triple railway tracks.

This works for me...

Snowman9000
Explorer
Explorer
The travel can change. On a bad enough bump the springs can invert.

You can just have someone weld a short block of rectangular tubing to the frame to stop the spring's bolt plate from moving too far up. That's what I did. Most likely you'll never hit it anyway.

There are various bolt on rubber bump stops out there, not necessarily for RVs.

Like these:
https://www.amazon.com/Energy-Suspension-9-9101G-Purpose-Bump/dp/B000CNB5OK



Probably 99.99% of the people don't have anything and never have a problem. So who knows.
Currently RV-less but not done yet.

Camper_G
Explorer
Explorer
I didn't read all the replies, but in short, no regrets at all. My Layton was low also and drug the rear bumper going into my driveway. No issues after the relocation. I love it this way. Good luck
2017 Dodge Ram 2500 HD, 4x4, CCSB, 6.4L HEMI, Snow Chief, tow package.,1989 Skyline Layton model 75-2251.

Huntindog
Explorer
Explorer
opnspaces wrote:
deltabravo wrote:
Huntindog wrote:
I'd like to flip my axle, as my little trailer is really low slung, but I'm concerned about having the leaf compress too far when it has more room to travel. Right now it just bottoms out on the frame if I hit a particularly bad bump.Put bump stops on it. Just like how cars do it.


The travel distance does not change when doing a spring over axle conversion.

If you hit a bad bump and the spring bottoms against the frame, that same thing will happen after the conversion.

Nothing changes with the mounting of the spring to the trailer frame, travel distance cannot increase.


The difference is that the spring can travel an extra 3-4 inches as the axle is no longer on top to contact the frame. So now on a really big bump the spring has to flex up extra high before the axle that is hanging under it contacts the frame and stops the flex.

I did a spring over conversion on mine many years ago. I did not install bumpstops and the suspension just does not flex that much to be a problem. I did pick up an alignment problem and can see the tires are wearing funny. Some day I'll fix it, but it's just not a priority right now. With the amount of towing that I do the tires will age out long before they wear out.
Check your bearings. That can cause funny tire wear. And it can leave you stopped on the side of the road when they fail. BTDT.
Huntindog
100% boondocking
2021 Grand Design Momentum 398M
2 bathrooms, no waiting
104 gal grey, 104 black,158 fresh
FullBodyPaint, 3,8Kaxles, DiscBrakes
17.5LRH commercial tires
1860watts solar,800 AH Battleborn batterys
2020 Silverado HighCountry CC DA 4X4 DRW

opnspaces
Navigator II
Navigator II
deltabravo wrote:
Huntindog wrote:
I'd like to flip my axle, as my little trailer is really low slung, but I'm concerned about having the leaf compress too far when it has more room to travel. Right now it just bottoms out on the frame if I hit a particularly bad bump.Put bump stops on it. Just like how cars do it.


The travel distance does not change when doing a spring over axle conversion.

If you hit a bad bump and the spring bottoms against the frame, that same thing will happen after the conversion.

Nothing changes with the mounting of the spring to the trailer frame, travel distance cannot increase.


The difference is that the spring can travel an extra 3-4 inches as the axle is no longer on top to contact the frame. So now on a really big bump the spring has to flex up extra high before the axle that is hanging under it contacts the frame and stops the flex.

I did a spring over conversion on mine many years ago. I did not install bumpstops and the suspension just does not flex that much to be a problem. I did pick up an alignment problem and can see the tires are wearing funny. Some day I'll fix it, but it's just not a priority right now. With the amount of towing that I do the tires will age out long before they wear out.
.
2001 Suburban 4x4. 6.0L, 4.10 3/4 ton **** 2005 Jayco Jay Flight 27BH **** 1986 Coleman Columbia Popup

deltabravo
Nomad
Nomad
I am pretty sure Nash and Arctic Fox trailers have the springs over the axles.

When I was doing RV transport, I liked the extra 80 or so miles I got from going to the Northwood factory, but I sort of hated towing them because they sat so high, the darn tongue jack wouldn't lift them high enough to get them on my hitch ball when the hitch head was mounted high enough to tow them level.
2009 Silverado 3500HD Dually, D/A, CCLB 4x4 (bought new 8/30/09)
2018 Arctic Fox 992 with an Onan 2500i "quiet" model generator

deltabravo
Nomad
Nomad
Huntindog wrote:
I'd like to flip my axle, as my little trailer is really low slung, but I'm concerned about having the leaf compress too far when it has more room to travel. Right now it just bottoms out on the frame if I hit a particularly bad bump.Put bump stops on it. Just like how cars do it.


The travel distance does not change when doing a spring over axle conversion.

If you hit a bad bump and the spring bottoms against the frame, that same thing will happen after the conversion.

Nothing changes with the mounting of the spring to the trailer frame, travel distance cannot increase.
2009 Silverado 3500HD Dually, D/A, CCLB 4x4 (bought new 8/30/09)
2018 Arctic Fox 992 with an Onan 2500i "quiet" model generator

deltabravo
Nomad
Nomad
On a 2 3/8" diameter axle, the lift gained is 5 1/4"
2009 Silverado 3500HD Dually, D/A, CCLB 4x4 (bought new 8/30/09)
2018 Arctic Fox 992 with an Onan 2500i "quiet" model generator

deltabravo
Nomad
Nomad
The travel distance does not change, so I don't see the need for bump stops, let alone how you'd install them since there are no kits for them made by Dexter.
2009 Silverado 3500HD Dually, D/A, CCLB 4x4 (bought new 8/30/09)
2018 Arctic Fox 992 with an Onan 2500i "quiet" model generator

GordonThree
Explorer
Explorer
Exactly... Looking for info based on reading those instructions. Lots of uTube guys showing the flip but nothing about the bump.
2013 KZ Sportsmen Classic 200, 20 ft TT
2020 RAM 1500, 5.7 4x4, 8 speed

Snowman9000
Explorer
Explorer
GordonThree wrote:
Huntindog, what steps did you take to prevent over-extending (compressing?) of the suspension?

I'd like to flip my axle, as my little trailer is really low slung, but I'm concerned about having the leaf compress too far when it has more room to travel. Right now it just bottoms out on the frame if I hit a particularly bad bump.


You are supposed to add a bump stop. Can be rubber or steel.

Dexter Axle's instructions. See No. 14
Currently RV-less but not done yet.