2024 JLR - CV Axle Shafts

Cousin Clyde

Cousin Clyde

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So, if there is discussion on this, please feel free to merge, but I have not found a lot of experience / input so far.

We bought my wife’s 2024 Rubicon last year. Bright White, 2-Door, 3.6, 4:1 Part Time T-case, no e-torque, full float rear axle design. Definitely had everything we wanted. However, we have CV joints at the front hubs.

My question is why would jeep do this, and has anyone run this setup for a while?

I used to wheel with a friend in an early 2000s 4Runner and he used to wear out his CVs on his IFS a few times a year. Obviously a very different setup on IFS, but are CVs inherently more prone to wearing out?

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Cousin Clyde said:
So, if there is discussion on this, please feel free to merge, but I have not found a lot of experience / input so far.

We bought my wife’s 2024 Rubicon last year. Bright White, 2-Door, 3.6, 4:1 Part Time T-case, no e-torque, full float rear axle design. Definitely had everything we wanted. However, we have CV joints at the front hubs.

My question is why would jeep do this, and has anyone run this setup for a while?

I used to wheel with a friend in an early 2000s 4Runner and he used to wear out his CVs on his IFS a few times a year. Obviously a very different setup on IFS, but are CVs inherently more prone to wearing out?

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CV’s on a solid axle not near as bad as IFS.
People pay big money for RCV axle’s.
I’d drive the shit out of it.
 
Jeep literally added CV shafts for the same reason they got rid of locking hubs - for the pussys out there. U-joints bind up at extreme turns and create a “crow hop” sensation and the CV’s eliminate this. Essentially, it’s for ride comfort.
 
Cousin Clyde said:
I used to wheel with a friend in an early 2000s 4Runner and he used to wear out his CVs on his IFS a few times a year. Obviously a very different setup on IFS, but are CVs inherently more prone to wearing out?
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That's because on an IFS, the shafts are always operating at an angle and the CV boots are always in a semi-state of pinch. That pinch is what causes the boots to wear out. Lift your rig and this pinch is even greater and will cause the boot to fail even sooner. Same is true of the boot on the drive shaft rzeppa joints. Lift your Jeep and the front is in a constant state of pinch and that's why it fails so quickly (assuming you don't have FAD). On a 2-door, the same is true on the rear shaft.
 
cozdude said:
Cv’s bind at extreme angles in an ifs suspension. That’s why they fail when you lift them and wheel them. In a solid axle even at full lock you are well within the working limit of the joint
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This makes absolute sense.

wayoflife said:
That's because on an IFS, the shafts are always operating at an angle and the CV boots are always in a semi-state of pinch. That pinch is what causes the boots to wear out. Lift your rig and this pinch is even greater and will cause the boot to fail even sooner. Same is true of the boot on the drive shaft rzeppa joints. Lift your Jeep and the front is in a constant state of pinch and that's why it fails so quickly (assuming you don't have FAD). On a 2-door, the same is true on the rear shaft.
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I’m tracking you, here. It’s all about the misalignment factor.

Mike Pierson said:
I’m not a pussy… 😢 🤣
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I can pretty much vouch for this.😆
 
wayoflife said:
LOL - CVs are very strong and RCVs are way bigger than the OE ones that come on Jeeps now. They're just really expensive and not really needed.
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Agreed. However, in my case I’m a little gun shy as I have broken two u-joints. One wasn’t my fault as it was defective, but the other was alcohol induced. Lesson was learned that day. 😂 The deal was too good to pass up and now I don’t have to worry about being “that guy” on the trail… as much. Haha
 
Mike Pierson said:
Agreed. However, in my case I’m a little gun shy as I have broken two u-joints. One wasn’t my fault as it was defective, but the other was alcohol induced. Lesson was learned that day. 😂 The deal was too good to pass up and now I don’t have to worry about being “that guy” on the trail… as much. Haha
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LOL - just gonna say, EVERYTHING breaks.
 
They seemed plenty strong on my JL392. I was running 37s and wheeled a lot from Moab to Windrock without any issues from them.

I didnt shy away from hitting harder trails with them either.
 
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