Rear drive shaft help - JKowners.com : Jeep Wrangler JK Forum
 
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post #1 of 10 Old 03-17-2013, 07:36 AM Thread Starter
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Rear drive shaft help

Long story short, and I can explain later.

The shaft part, red arrow comes out. Anyone know the size of the snap ring that goes on there? The green arrow, the joint? Stays attached to the pinion flange. Best guess is when it was re geared the guy installed it a little crooked or something. The yellow points to the the lip around the pinion flange which doesn't allow me to pry it out.

I hope that was enough to explain my issue. If not i can elaborate.



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post #2 of 10 Old 03-17-2013, 02:03 PM Thread Starter
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Rear drive shaft help

Nobody? This thing has to be removed regardless if its still good or needs replaced.


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post #3 of 10 Old 03-17-2013, 03:18 PM
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I had this exact problem with my rear shaft. It was about 20,000 miles ago so this advice should work if executed properly. I found a ton of water in the "Sealed" joint which corroded the c-clip and allowed it to do what you are describing.

Mark the position of the shaft to to flange. Apparently this is important, I didnt do it, but thats the word on the streets. It wont affect balance at all if you dont.

To get the shaft out of the pinion flange, you will need to get a centerpunch behind the flange with the bolts removed. You will see small access holes at opposite side of the the yoke. Use the centerpunch to kock the shaft out of the flange. Repeat the process for the T-Case side of things.

With the driveline removed from the vehicle, you will notice a cap on the back side of the Rzeppa joint. It is mechanically crimped on. With a small screwdriver, pry each tab up and remove the cap. Its full of grease, and in my case water, so have plenty of rags on hand. Wipe the grease off best you can, and remove the snap ring securing the shaft to the joint. The joint will now be held on the shaft only with the rubber boot. The collar that holds the boot to the joint will slide off, with some persuasion.

Thake the shaft to an auto parts store and find the correct snap ring.

To re assemble, pack the joint, boot, and end cap with grease then re-install the snap ring. Secure the end cap by using a chisel and work your way around the lip of the joint, hammering each tab into place.

Re-install and youre good to go.
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post #4 of 10 Old 03-17-2013, 03:25 PM Thread Starter
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Rear drive shaft help

Sweet. I just got similar advise elsewhere too. I didn't see the two extra holes the other day. That's a def plus cause now I know it'll come out. I don't think there's water in there and have no idea how it didn't just pop right out.

I was hoping to find the snap ring prior to doing all this, but I can turn the test drive without rear shaft into snap ring shopping as well. Thanks for the help. Tomorrow should go much, much smoother now.


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post #5 of 10 Old 03-17-2013, 05:05 PM
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you can also use a 3\8 bolt and a air hammer on the bolt to drive the shaft out
mine was seized very bad that's how I got it out

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post #6 of 10 Old 03-17-2013, 05:14 PM Thread Starter
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Rear drive shaft help

Quote:
Originally Posted by mn jk jeeper View Post
you can also use a 3\8 bolt and a air hammer on the bolt to drive the shaft out
mine was seized very bad that's how I got it out
I'm lost here. I guess I have to see what you're talking about. I don't think it can be that bad. It was just out to have it regeared.


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post #7 of 10 Old 03-17-2013, 05:51 PM
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you stick a 3/8 x 1" long or so bolt onto the hole in the rear flange
threaded end first
take the air hammer with a flat head attachment and drive that against the head of the bolt work from side to side till it pops out

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post #8 of 10 Old 03-17-2013, 06:57 PM Thread Starter
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Rear drive shaft help

Ah. Makes sense now.
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post #9 of 10 Old 03-18-2013, 08:07 PM
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post #10 of 10 Old 03-18-2013, 09:46 PM Thread Starter
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Rear drive shaft help

Yeah. It helped after I broke everything off the pinion flange. All is sort of better now. I turned the drive shaft a quarter of a turn when I re installed it but it still vibrates a little.


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