Rock Krawler 3" X Factor JT System

[Relentless_Eric]

@jjmstang looks correct. All 8 links (front upper axle side is factory rubber bushing into axle housing, no RK bushings there) makes 14 sets and one set for the front track bar joint.

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[jjmstang]

@jjmstang looks correct. All 8 links (front upper axle side is factory rubber bushing into axle housing, no RK bushings there) makes 14 sets and one set for the front track bar joint.

Ok thanks for info

 

[Tjp]

@snowho

hey if Im not mistaken, I think the torque is now 25 EDIT: CONFIRMED W RK ITS 25 lbs TORQUE NOT 20lbs.) on these. Lets get confirmation from RK but when I called them about mine I was told that everything is the same to rebuild the joints as shown in their video.

Ill ask them, and direct them to this thread as well.

Pulled my rear arms and the same thing has happened. The original, factory bushing did this exact samething. When I pulled the arms off the balls were loose in the bushing, just like the originals. I installed the pictured set at 25ftlbs and they were well greased.

As you can see the bushing gets soft and pushes into the grease raceway. I wish I had pics of the original factory ones because they were exactly the same.

I posted pics of my original pro flex bushings earlier in the thread and the red replacements are working fine.

 

[snowho]

The set I just put in were set to 20, see what happens.

@snowho

hey if Im not mistaken, I think the torque is now 20lbs not 25 on these. Lets get confirmation from RK but when I called them about mine I was told that everything is the same to rebuild the joints as shown in their video, except use 20lbs not 25.

Ill ask them, and direct them to this thread as well.

 

[Rock Krawler Suspension]

Pulled my rear arms and the same thing has happened. The original, factory bushing did this exact samething. When I pulled the arms off the balls were loose in the bushing, just like the originals. I installed the pictured set at 25ftlbs and they were well greased.

As you can see the bushing gets soft and pushes into the grease raceway. I wish I had pics of the original factory ones because they were exactly the same.

I posted pics of my original pro flex bushings earlier in the thread and the red replacements are working fine.

Having the joint raceways creep into the grease groove has nothing to do with the TSB and is a totally normal function of the joint raceways. The actual material of the raceway is correct on everything that is shipping and creep is not indicative of a bad joint or raceway.

 

[Rock Krawler Suspension]

Wonder why Rockkrawler is no where to be found on this thread any more ?

Honestly, we are busier than we have ever been before. I run all the forums and a lot of the facebook pages solo. A year ago, I would see 20-30 emails daily and take around 20 phone calls each day. Currently, I'm seeing about 130 emails on average and my phone literally doesn't leave the side of my face all day. I'm not complaining, just giving the facts of life. We have been looking for a sales/tech support person for quite some time to help spread the load and get us back into the more fun parts of the job, like forums. I wish I had more time to be in here...

If you know anybody in our area or wanting to relocate here who knows what they're doing with a wrench and a computer, send them our way.

 

[Tjp]

The set I just put in were set to 20, see what happens.

Snowho I confirmed w RK torque is 25 not 20. Rk also replied to this thread creep is normal.

 

[snowho]

Having the joint raceways creep into the grease groove has nothing to do with the TSB and is a totally normal function of the joint raceways. The actual material of the raceway is correct on everything that is shipping and creep is not indicative of a bad joint or raceway.

It blocks the grease from getting to portions of the joint and whatever material you are using now is still breaking down.

that grease channel is completely blocked from getting grease. This is exactly what the factory ones did which you said was a failure of the bushing material.

 

[Rock Krawler Suspension]

It blocks the grease from getting to portions of the joint and whatever material you are using now is still breaking down.

that grease channel is completely blocked from getting grease. This is exactly what the factory ones did which you said was a failure of the bushing material.

the grease passageway is greater than the width of the material that has crept into it. creep was not part of the TSB, it has been a normal occurrence in Krawler joints since 2003. Johnny joints, which are claimed to be an industry standard in joints, creep in the same way. Grease will still flow.

Do you have a durometer? Can you show what the measured durometer of the raceway is? The material being used is correct, we have certifications to verify chain of custody and validate the material. Surface wear is expected and not indicative of a material breakdown. The material breakdown that was part of TSB#2 was a literal change in durometer when exposed to hydrocarbons. What you're displaying is not any form of evidence to support that claim. We don't make assumptions, this is simply fact based.

 

[snowho]

the grease passageway is greater than the width of the material that has crept into it. creep was not part of the TSB, it has been a normal occurrence in Krawler joints since 2003. Johnny joints, which are claimed to be an industry standard in joints, creep in the same way. Grease will still flow.

Do you have a durometer? Can you show what the measured durometer of the raceway is? The material being used is correct, we have certifications to verify chain of custody and validate the material. Surface wear is expected and not indicative of a material breakdown. The material breakdown that was part of TSB#2 was a literal change in durometer when exposed to hydrocarbons. What you're displaying is not any form of evidence to support that claim. We don't make assumptions, this is simply fact based.

Why would I have a durometer? Now you're being a condescending dick. I don't need a durometer to tell you these bushings are shit. That bushing you're saying has normal "creep" was 3 months old, screeching like banshee and loose just like the original factory installed ones did after 4k miles. These Rock Krawler joint bushings are doing the same thing as these pro flex ones. My arms aren't even 9 months old.

 

[Rock Krawler Suspension]

Why would I have a durometer? Now you're being a condescending dick. I don't need a durometer to tell you these bushings are shit. That bushing you're saying has normal "creep" was 3 months old, screeching like banshee and loose just like the original factory installed ones did after 4k miles. These Rock Krawler joint bushings are doing the same thing as these pro flex ones. My arms aren't even 9 months old.

I'm trying to work off of facts and not assumptions. If you want, I'll get those raceways back from you and test durometer. Working off of assumptions is not going to get anyone anywhere. A lot of people use durometers in automotive racing, go carting, etc. It's not an unfair question to ask.
Creep happens as the retainer is torqued, you can see the first signs of it immediately.

The Pro Flex Bushings and the Krawler Joint Raceways are made of entirely different materials, validating something you don't think is correct based off of an entirely different part or component is a really bad assumption.

We do have a very high durometer raceway if you'd prefer, I'll shoot those out to you. We don't use them in production outside of track bars as they have far less NVH damping but they won't creep the way that you're experiencing.

 

[snowho]

I'm trying to work off of facts and not assumptions. If you want, I'll get those raceways back from you and test durometer. Working off of assumptions is not going to get anyone anywhere. A lot of people use durometers in automotive racing, go carting, etc. It's not an unfair question to ask.
Creep happens as the retainer is torqued, you can see the first signs of it immediately.

The Pro Flex Bushings and the Krawler Joint Raceways are made of entirely different materials, validating something you don't think is correct based off of an entirely different part or component is a really bad assumption.

We do have a very high durometer raceway if you'd prefer, I'll shoot those out to you. We don't use them in production outside of track bars as they have far less NVH damping but they won't creep the way that you're experiencing.

If I had kept those bushings I would absolutely have sent them to you but I didn't keep them. I'll take your word that what I'm experiencing and shown in photos is normal for your joint and I'll just move on to something different.

 

[Rock Krawler Suspension]

If I had kept those bushings I would absolutely have sent them to you but I didn't keep them. I'll take your word that what I'm experiencing and shown in photos is normal for your joint and I'll just move on to something different.

I get it, would you like to try the high durometer raceways?

 

[Membrain]

...is this now an option?

 

[Rock Krawler Suspension]

...is this now an option?

On an individual, case by case basis, I'm sure it is something we can do. The high durometer large krawler raceways are a very low volume item for us so doing this in mass is not possible. The user above has concerns and I want to do what I can to satisfy them.

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