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Old October 12th, 2011, 12:48 PM   #1
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Default XJ dana issue

So my XJ had a messed up yoke on the front Axel and I bought a new one and had someone put it on for me last summer. The pinion seal (I believe that's what it's called) started leaking about a month or 2 later. I changed the fluid and inspected everything shortly after the leak started and all looked fine as far as I could tell. Now I have a grinding noise coming from it. Recently it started leaking more. I pulled my front d shaft a few days ago to see if it was the u joints or the slip shaft, and although it did quiet down a bit, it's still there. I also noticed it's worse when in reverse and certain turns as well. Just looking for some direction as I don't want to start messing with shit I'm not qualified for. Input, comments, suggestions and advice is all appreciated.
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Old October 12th, 2011, 01:02 PM   #2
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Who installed it? If they didn't know what they were doing they could have done a number on your pinion bearing
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Old October 12th, 2011, 01:06 PM   #3
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any metal shavings on the drain plug? I agree with ajmorell, it is likely a pinion bearing.

If you're not familiar with differential work, call a few local shops and see what it would cost to have it diagnosed. Some shops around here will diagnose for free, some do not.
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Old October 12th, 2011, 06:46 PM   #4
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The plug had no signs of shavings. I did check it today and it was low. With the angle of the pig from my lift it's a pita to fill. But I did and it got a little more quiet. Why does it sound worse when turning in reverse. Like backing out of a dway?


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Old October 12th, 2011, 08:40 PM   #5
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- because you're changing the axis of the bearing load in reverse. Most likely is turning them a way they don't like - sounds like you need pinion bearings. If you swap yokes and don't know wtf you're doing, you'll change the preload too much and shit the bed.

Oh well. You wanted new gears anyway...
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Old November 1st, 2011, 02:13 PM   #6
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- because you're changing the axis of the bearing load in reverse. Most likely is turning them a way they don't like - sounds like you need pinion bearings. If you swap yokes and don't know wtf you're doing, you'll change the preload too much and shit the bed.

Oh well. You wanted new gears anyway...
yep, reverse loads the pinion tail bearing, drive loads the head bearing. When the new yoke was put on, a new crush spacer should have been used, and the torque to rotate the pinion has to match before and after, otherwise you've up'd your pinion bearing preload above it's happy range and you need to replace them. Luckily the bearings aren't expensive, but the rest of the job is...
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Old November 4th, 2011, 01:00 PM   #7
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So I just got a quote of $650 to replace the bearing and seal. He said that they have to take the whole thing apart and replace all bearings ect ect. I feel like that's a pretty big investment for such a little axle. Does this price seem ridiculous to any one else? Does anyone have any suggestions for me?


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Old November 4th, 2011, 01:21 PM   #8
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find a used axle and swap it

i got a set with 4.10's i will sell you for less than 650 too
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Old November 4th, 2011, 02:22 PM   #9
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You really don't have to replace the carrier bearing but once in there, it's not much more time to do them as well.

I have a dana 30 with 3.73 gears with less than 30k on it. Haven't ran it in 2 years but it was fine when pulled. Always keep inside.

Your best bet would be to swap axles.
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Old November 4th, 2011, 06:51 PM   #10
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So I just got a quote of $650 to replace the bearing and seal. He said that they have to take the whole thing apart and replace all bearings ect ect. I feel like that's a pretty big investment for such a little axle. Does this price seem ridiculous to any one else? Does anyone have any suggestions for me?


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Yeah that is about par with changing out all 3 bearings. Sounds like a quote from DTS.

I have paid that a few times unfortunately. Like others have already said swap in a different working used axle. Parts Galore is roughly $175. Maybe cheaper if you leave off outer knuckles, rotors, and axle shafts. However that is a lot of work to do in the yard without impacts.
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Old November 4th, 2011, 07:07 PM   #11
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did you check the pinion for free play buy trying to move the yoke? If thats tight you may have to check the spider gears buy pulling the diff cover.
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Old November 4th, 2011, 07:17 PM   #12
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Quote:
Originally Posted by xj-james View Post
So I just got a quote of $650 to replace the bearing and seal. He said that they have to take the whole thing apart and replace all bearings ect ect. I feel like that's a pretty big investment for such a little axle. Does this price seem ridiculous to any one else? Does anyone have any suggestions for me?


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WOW. I just payed $300 to have gears installed in my Dana 44. I supplied Gears. They supplied everthing else, bearing (pinion and carrier) seals (pinion and shaft seals) shims, nut for pinion, ect.
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Old November 5th, 2011, 06:30 AM   #13
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WOW. I just payed $300 to have gears installed in my Dana 44. I supplied Gears. They supplied everthing else, bearing (pinion and carrier) seals (pinion and shaft seals) shims, nut for pinion, ect.
That's a great deal. Master install kits are about 100-150. I would never do gears for less than $300 labor.

Was the axle out of the vehicle?
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Old November 10th, 2011, 07:03 PM   #14
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Originally Posted by xj-james View Post
So I just got a quote of $650 to replace the bearing and seal. He said that they have to take the whole thing apart and replace all bearings ect ect. I feel like that's a pretty big investment for such a little axle. Does this price seem ridiculous to any one else? Does anyone have any suggestions for me?


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I put new gears, torsen limited slip differential, all bearings & seals - plus a decent dial indicator & in-lb wrench for about the same price.

It's not an easy job, but it's not $650 hard, either.
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