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Old 06-18-2013, 03:19 PM   #1
Lunabadger's Avatar
Join Date: Jun 2013
Posts: 5
Slip Yoke Replacement

Hey, i hate being the guy to just create an account to ask for help, but it's necessary right now.

I drive a '94 YJ. She's equipped with about a 4" lift. Obviously that's been causing problems with my rear end.
A few times, now, the rear yoke in the differential and u-joint have exploded and i've had to replace them.
This time, rather than it popping out the differential, it's chewed up and exploded from my transfer case.
Right now i don't have the funds for a SYE, so i am just trying to replace the yoke itself.
However disassembly of the drive line has been eluding me and i need advice on how to carry out. I will grab some pictures of the affected areas.

What i am looking for is tips on disassembly of the drive line's u-joint, but also reassembly with the new materials. Thanks in advance!
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Old 06-18-2013, 04:50 PM   #2
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Well, i just ended up pounding out the caps.

Probably not the best method, we'll see how it runs.

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Old 06-18-2013, 05:00 PM   #3
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As long as you took the snap rings out you did good, when you put it back together make sure you put the new snap rings back in.
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Old 06-18-2013, 05:36 PM   #4

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Location: Florence, KY
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does your jeep have a t-case drop of any kind? what about degree shims on the rear axle under the leaf springs.. that might help to buy you some more time between u-joint changes.
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Old 06-19-2013, 09:30 PM   #5
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Join Date: Jun 2013
Posts: 5
My rear axle is rotated up slightly to lessen the angle there. Right now the degree is on the verge to the t-case. What made it snap, though, was just that the u-joint had been in there for several years and it couldn't be greased; it just dried up and snapped.

If it continued as usual, sadly i can plan, i have about 9-10 months before i need to replace it. Hopefully i can get myself a main commuter by then so i can tear my jeep apart and start one of those build threads.
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Old 06-21-2013, 11:19 AM   #6
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Join Date: Aug 2012
Location: SC
Posts: 135
When running a standard driveshaft(1 joint at each end) the angles at the joints should be equal but opposite with the axle yoke having a little more downward tilt to account for pinion rise when under power. Unequal angles can set up odd harmonic vibrations in the shaft that can and will FUBAR joints, yokes and/or shafts, as you can testify to. Like stated above a transfer case lowering kit will help buy you some extra time until you can afford a SYE kit.

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