Need Eyeballs For Front Pinion Yoke - JeepForum.com
 
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post #1 of 5 Old 09-22-2017, 02:04 PM Thread Starter
funtapaz
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Need Eyeballs For Front Pinion Yoke

https://youtu.be/z0VG0HQAmUM

Is this too much play? Keep in mind the beginning is side-to-side play, not rotational. If it is too much play, would I be better served trying to replace the bearings, rebuild the diff, or buying a junkyard Dana 30 for ~$300?

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post #2 of 5 Old 09-22-2017, 02:16 PM
222Doc
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unless you have the experience to set up a dif and the tools. It will be harder to do than it looks. If you have the time to learn how, tools, space to work on it. you dont need the jeep for a time while you do the work...

might be best to find a used axle(though they may need work as well). you wont know the real condition of all the bearings until its apart. this would be the time to replace inner seals as well. since you would have the dif and axles out.

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post #3 of 5 Old 09-22-2017, 02:21 PM Thread Starter
funtapaz
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Quote:
Originally Posted by 222Doc View Post
unless you have the experience to set up a dif and the tools. It will be harder to do than it looks. If you have the time to learn how, tools, space to work on it. you dont need the jeep for a time while you do the work...

might be best to find a used axle(though they may need work as well). you wont know the real condition of all the bearings until its apart. this would be the time to replace inner seals as well. since you would have the dif and axles out.
So I'm taking this as "yes this is too much play", right?
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post #4 of 5 Old 09-22-2017, 02:30 PM
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side to side play/lateral movement is not good. rotational is hard to judge like that since the measurements done inside with a magnetic base dial indicator to measure the lash between the pin and ring. But is effected by the lateral issue of that pinion bearing.

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post #5 of 5 Old 09-22-2017, 03:10 PM
RLE
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My 2 cents worth:

It's not like new but it doesn't look like it's shot just yet. I replaced
my Jeep's D30 when it had a lot more lateral play than that. If it isn't
giving you other problems (leaks, vibrations, whine, noises, etc,), you
can run it for awhile. I believe keeping the driveshaft slip yoke and
the front u-joint well greased helps keep the pinion from wearing so fast.

If you do get a JY D30, it may have some problems, too. I had to
put new ball joints in a few months after the swap.

Paying a shop to replace the pinion bearings or rebuild the differential
can get very costly. If you have time and can do it yourself, then that's
another thing.
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post #6 of 5 Old 09-22-2017, 03:26 PM Thread Starter
funtapaz
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It did have a leak, and it did give vibes. The original front shaft was incredibly loose around the slip yoke. I replaced it with a shaft off a 2001, vibes went away but binding noise when doing sharp turns didn't go away unless the shaft was off. I replaced the front u joint on the shaft to see if it was the source of binding noise. It wasn't and now vibes are back.

I've went ahead and picked up a complete front axle assembly of a 95 XJ with 130k. It looks good and the yoke has zero lateral play.
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