Bouncy rear after lift install.

[first&lastKJ]

We are gathered here today, the last part of January to come together in the Jeep KJ world, to help and back one of dear friends who is making a making a hard choice.
We all hope that his choice is the right one, that will allow him to ride the roads of life smoothly and safely with no more bounce . Let him know the hardships that we sometimes face when building these fine vehicles are short lived , but also know the satisfaction and the joys when it all comes together.




Also please , please let his choice be the right one, so there will be no more posts regarding this! :happy175::happy175::happy175:

Rev. Mudd back for another one ...........

Amen!

 

[first&lastKJ]

Please let these be the ones...

Tom, do you suppose the Monroe spring supported shocks would stiffen him up in back? That's what I ordered for mine... and I've used them on "bouncy" big cars and an old Ranger year ago and found that it did just that.. in fact, on the Ranger they were TOO STIFF.

Don't tell tom, but let me know how these work out for you. Shhhhhh.

 

[kejobe]

The load leveler shocks or helpers, or whatever you want to call them, should not be used for their intended sale purpose. The shock mounts are not made to take the extra forces the they create.

 

[JasonJ]

The load leveler shocks or helpers, or whatever you want to call them, should not be used for their intended sale purpose. The shock mounts are not made to take the extra forces the they create.

On only the KJ or all vehicles? I ask because I've used them successfully on no less than 3 other vehicles.

On what do you base this statement? Do you have shock force data to show the difference? Shear strength numbers for the shock mount?

How do we know that the forces are increased under any specific driving circumstances? Just going down the road these types of shocks act just like stiffer gas or hydraulic only shocks would...

Would love to hear from anyone first hand who's had their shock mounts fail.

Not saying it's not true... But I would need to see some empirical data.

Worst case, I can fabricate new ones of increased strength.

 

[kejobe]

I haven't used them on any vehicle. My reasoning for this is that the mounts are for the shocks only. You add the spring into the equation and the spring wanting to expand will put more force on the mounts, especially with any load on them, and were only designed to handle the shock itself. It may work, possibly for the life of the vehicle, but not designed for that load.

 

[tommudd]

100,000 miles on the Monroe coilovers/ load levelers ( 2 sets of them ) on the 04
This included going offroad, on road pulling fully loaded trailers, extra weight of RL rear bumper Kilby gas tank skid etc all the time etc
Trips included 6x10 fully loaded trailer with whole household inside from Ohio to Florida etc
Never any issues at all

have also used them on other vehicles in the past

 

[kejobe]

100,000 miles on the Monroe coilovers/ load levelers ( 2 sets of them ) on the 04
This included going offroad, on road pulling fully loaded trailers, extra weight of RL rear bumper Kilby gas tank skid etc all the time etc
Trips included 6x10 fully loaded trailer with whole household inside from Ohio to Florida etc
Never any issues at all

have also used them on other vehicles in the past

Touché, but I still wouldn't trust them. To each their own.

 

[JasonJ]

Don't tell tom, but let me know how these work out for you. Shhhhhh.

I'm sure they'll be good to go! They sure are BEEFY units though, I tell ya that!

Touché, but I still wouldn't trust them. To each their own.

Fair enough. Tell ya what, since I already have them sitting in my house, I'll be guinea pig number two after Tom. I'll report back how they do on the stock mounts.

Again, worst case, I'll weld stronger mounts to the axle, or weld 1/8" plates to the existing mounts and axle tube to reinforce it.

I think if it were to begin to fail, since the spring is pushing the two sides of the mounts apart, it'd be a shearing or tearing of the bracketry from the body or axle. This should be evident with a visual inspection long before catastrophic failure.

 

[tommudd]

There have been several people run them, personally have installed 9 sets on other peoples KJ with no real issues.
Those people pulled everything from pop up campers/ boats/ cargo trailers and some nothing at all .
So counting me, there are 10 plus the people on the forums here that have ran them, add in another 15-20 at least .
So now we're up to possibly 30 people that I know of personally and all of those have been ran for miles and miles , no problems or I would of heard them.
But to each his own, just sharing my experience(s)

 

[duderz7]

The stiffness of a shock does not change the weight of a vehicle which in my thinking is what decides the stress on a shock mount. But I am but a lowly armchair engineer... what do I know?

 

[JasonJ]

The stiffness of a shock does not change the weight of a vehicle which in my thinking is what decides the stress on a shock mount. But I am but a lowly armchair engineer... what do I know?

I think he must've been thinking that during the compression and rebound cycle of the shock during normal operation, the force of the spring resisting compression causes additional stresses and pressure on the upper or lower mounts (really, they would be divided equally).. it makes sense conceptually.

However, I would need to see hard data to prove that the mount itself is insufficient to handle these loads. Just saying that it is not designed for it isn't actually stating very much, despite being technically correct. They didn't design it for that; but that does not mean that it cannot handle it just fine.

 

[duderz7]

I see what you're saying, but unless the shock is trying to push our pull beyond the limits of the suspension it's only getting pressure on mounts from weight of vehicle. Besides, If we only did things these vehicles were designed for we wouldn't have this forum to discuss such things. I suppose you could to shock mounts off with stock suspension of you wanted... Depending on how you drive it.

 

[kejobe]

I think he must've been thinking that during the compression and rebound cycle of the shock during normal operation, the force of the spring resisting compression causes additional stresses and pressure on the upper or lower mounts (really, they would be divided equally).. it makes sense conceptually.

However, I would need to see hard data to prove that the mount itself is insufficient to handle these loads. Just saying that it is not designed for it isn't actually stating very much, despite being technically correct. They didn't design it for that; but that does not mean that it cannot handle it just fine.

This is true, I just have no desire to find out for myself.

 

[tommudd]

When I first became interested in a KJ ( mid 2004) and researching them all said that you were pushing it running 2.5 inches of lift.
Well bought one and just a few months later was tossing that almost new suspension for an OME 2.5 inch lift, then we starting pushing the envelope more and more, discussing on LOST with others we went to 3 inches, then 3.5 etc
When I first mentioned running the Monroes ( no one else had tried ) people said it wouldn't work, don't waste your money but did it and worked well.
If I would of listened to the nayslayers in 2004 , well never would of ran 4.5 inches of lift for over 120,000 miles, never would of ran 32s with 4.10s, never would of even had more than 2.5 inches of lift and never of pushed it.
Thanks to many like Troy ( tjkj2002) some others on LOST, meeting Marlin ( JBA) early on and being able to work closely with him, testing out new ideas, working with him at his shop, well would of been a boring last almost 15 years :happy175:
So if you don't trust the setup, you don't have to run them, enjoy yours anyways and have fun

 

[dude1116]

I run the load-levelers. They became incredibly noisy after a while. The springs make creaky metal noises. The ride is great though. Stiff. Throw some weight in the back and it feels like a whole new vehicle. Absolutely perfect. Wish I had an aftermarket rear bumper.

 

[first&lastKJ]

I don't know why it took me so long, but I finally got the OME-N132L's ordered and installed on the 07.
These are well worth the money, the ride is perfect, if anyone is thinking about getting them do it. I still had the original shocks on the rear and it is sitting at 22'', so I definitely needed these.

 

[LibertyTC]

^ Sounds Good ! Yes it's nice to have a restored smoother ride again I'm sure.
I'm using the Monroe #58649. When I pull the boat next week, I wont even know it's on.

You must be registered for see images attach

I've never weighed the trailer tongue weight before, but it's up there.

 

[Doing10to20]

I've noticed the same thing a bit bouncer nothing that I cant deal with but it's not ideal..I went with the dakota 4x4 club cabs... offroad tho they feel good which is weird to me,just went over 100 miles offroading 2 days ago and they worked well but on the streets they do feel bouncy, thinking of trying RR extended shocks

 

[first&lastKJ]

I've noticed the same thing a bit bouncer nothing that I cant deal with but it's not ideal..I went with the dakota 4x4 club cabs... offroad tho they feel good which is weird to me,just went over 100 miles offroading 2 days ago and they worked well but on the streets they do feel bouncy, thinking of trying RR extended shocks

The OME's are much better than the Bilstein shocks I had.

 

[first&lastKJ]

^ Sounds Good ! Yes it's nice to have a restored smoother ride again I'm sure.
I'm using the Monroe #58649. When I pull the boat next week, I wont even know it's on.

You must be registered for see images attach

I've never weighed the trailer tongue weight before, but it's up there.

How long have you had the Monroe shocks?
Do you get any squeaking or noise from them?
Last question do they install without any modifications?