Time for a new shaft.

2 door ? Chances are you are higher then 2.5 and need pinion correction.

- new shaft
- adjustable control arms (at min uppers)

 

opcorn:

interested in how this turns out...

 

A torn slip boot is no big deal.
Loosing grease from the CV joint will eventually cause the joint to dry out and eventually fail.

 

A torn slip boot is no big deal.
Loosing grease from the CV joint will eventually cause the joint to dry out and eventually fail.

I disagree. The torn boot is what causes it to lose grease. Once a boot is torn, it's a matter of time before the shaft fails.

 

Can I grease the CV joint? Or does it need replaced? Shouldn't the dealer cover this?

 

No on greasing,

I doubt a dealer would replace the shaft. Stock for stock it's a simple swap if you can find a takeoff.

Does you jeep have adjustable control arms.

 

No adjustable control arms.

 

Curious what your rear height is.

If you can. Measure from the bump stop base on the axle to the metal cup lip.
Stock = 5"

 

I'll get back to you tomorrow. My jeep is still at the dealer. It looks like they changed their mind and they're going to fix it under the warranty, so that's some good news. I'm definitely interested and what adjustments I need to make to the jeep to correct this in the future. Control arms?

 

Uppers alone will bring the pinion up, but they have to adjust close to stock. I think the RK uppers are too long w/ stock lowers.
Currie, Synergy iirc

Stock uppers = 17.5
I'm thinking 17.75-18"

 

The new driveshaft the dealer installs will probably see the same fate as your current one. When I had the stock driveshaft I had no torn boots or grease coming out, but I threw it away and bought a new one when the lift was installed. Why not just replace it with something better? It'll cost a pretty penny, but it will also last more than 7600 miles.

 

With no bumpers your prob sitting around 3-3.5 inches. The 2012 jks ( 2door) with the new engine caused higher driveline angles then the previous 3.8. Something to that nature at least. Kj would know more.

 

+2

I think it was just the wording because sometimes it can take months for the shaft to fail depending on size of the tear.

 

"Slip" boot, Not to be confused with the CV boot.

Aftermarket shafts do not have slip boot covers.

Grease loss from a split CV boot will eventually lead to failure,

C-mon guys .. You know me better than that lol

 

Ahhhh! The only way that would tear is if it was being pulled too far out...

 

I've had boots tear, and like others said, it's only a matter of time before all the grease is gone and the CV joint destroys itself. Mine happened on a lowered car and i didnt know what happened until the damn thing snapped off.. The simple fix is a new boot and greased up joint... If the joint is already dry i would replace the whole thing.. but that doesn't solve why it tore in the first place...

 

Just for some clarification, based on the picture that looks like the CV joint.. Our CV joints don't have boots btw... There either exposed or the ball CV's are in a housing.. looks like grease is making its way out the housing through a hole?

Based on that assessment, A different shaft isnt going to fix the problem OEM or Aftermarket since it doesn't replace that CV joint... Probably need a better angle on the shaft.

 

Or dragging it across something

Crown now makes rebuild kits for the factory Rzeppa joints, pretty cool actually,

 

A rear pumpkin/CV skid plate is on my short list.

 

Nvm, i just realized the drive shafts come with the Rzeppa joints..

 

Before I would spend money on a new shaft I would make sure I had the ability to adjust the pinion angle. If you dont you will just tear up an aftermarket shaft too, although not as easily as they typically will flex quite a bit more than a stock joint. I think stock is 18 degrees of flex while something like a Tom Woods has 24 degrees(if i remember what he told me a few months ago).

 

U-joints don't like more then a few degrees or will vibrate. Control arms are needed running a double carden in the rear.