How does this happen? - JeepForum.com

 
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post #1 of 13 Old 05-07-2013, 08:38 PM Thread Starter
MuddSnapper
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How does this happen?

Front axle

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1990 Renix XJ 'Rusty Blue'
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31" Copper STT

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post #2 of 13 Old 05-08-2013, 10:49 AM
98muddyjeep
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Are you talking about the marks on the plate behind the pinion gear?

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post #3 of 13 Old 05-08-2013, 11:05 AM
CJ7-Tim
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Original stock gears, or replacement gears ?

.

A recent Gallup public opinion poll shows the NRA, at 58% approval, has a higher approval rating than either Hillary Clinton or Barack Obama.

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post #4 of 13 Old 05-08-2013, 11:39 AM
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I'm getting old.The pics weren't big enough.

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post #5 of 13 Old 05-08-2013, 12:24 PM
Diamond-x
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You're gonna need to provide a little more info.
Was there any schrapnel or excessive grit in the diff? Was the pinion excessively loose? Was it like that when you installed it?
Look for a large chunk of something in the nooks and crannys of the diff.
Judging by the large pic (kudos for actually putting it in focus) it looks like something contacted the plate over-and-over, possibly the pinion.
But were gonna need more info to diagnose.
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post #6 of 13 Old 05-09-2013, 12:49 PM Thread Starter
MuddSnapper
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90 xj stock Dana 30, as far as i know stock gears. Bought it for 900 in Feb. with a 4 in lift and 31's. No grit, fluid looked pretty new though. 241 t case with slack in the chain, shaft turns more than it should when you trust it by hand. I've been having this gnarly shake and growl at low speeds, worse when braking to a stop. Opened her up cleaned her real good, even took the front shady out and it might gave helped but not a noticeable difference. Anything else you need?

Would bad shaft seals cause this? Might have to take a video..

1990 Renix XJ 'Rusty Blue'
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31" Copper STT

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post #7 of 13 Old 05-09-2013, 05:00 PM
CJ7-Tim
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Probably a sloppy pinion bearing. Any play in the axle yoke ?

.

A recent Gallup public opinion poll shows the NRA, at 58% approval, has a higher approval rating than either Hillary Clinton or Barack Obama.

Progressive Liberalism: Bringing you new Healthcare ideas so wonderful, they have to include mandatory participation ...

Originally Posted by Ronald W. Reagan: Government is not the solution to our problems; Government is the problem.
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post #8 of 13 Old 05-09-2013, 05:03 PM Thread Starter
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Only slightly front to back. Maybe a few thousandths? It is wet around the yoke like it was leaking at one point but my driveway only does spits of brake fluid from a leaking abs hose..

1990 Renix XJ 'Rusty Blue'
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31" Copper STT

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post #9 of 13 Old 05-10-2013, 02:15 PM
Diamond-x
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Quote:
Originally Posted by CJ7-Tim View Post
Probably a sloppy pinion bearing. Any play in the axle yoke ?
^ this
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post #10 of 13 Old 05-11-2013, 08:05 AM
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Quote:
Originally Posted by MuddSnapper View Post
Only slightly front to back. Maybe a few thousandths? It is wet around the yoke like it was leaking at one point but my driveway only does spits of brake fluid from a leaking abs hose..
There should NEVER be any axial play in the pinion when installed correctly.

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post #11 of 13 Old 05-11-2013, 08:59 AM Thread Starter
MuddSnapper
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Quote:
Originally Posted by AZ Jeff View Post
There should NEVER be any axial play in the pinion when installed correctly.
OK. I didnt install a new one yet but I will keep that in mind. On the pass side I think my u joint is shot. The shaft slides in and out a decent amount. Could that be from the C clip breaking or the U joint

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post #12 of 13 Old 05-11-2013, 09:23 AM
98muddyjeep
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The front axles dont use c clips to hold them in,the unit bearings at the wheel hold the front axles in and no it wouldnt cause that,I have seen some awful bad u joints in my time with no internal damage.

ah,beer the cause of and cure to all of lifes problems ...Homer J Simpson... I am the guy in the red jeep!
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post #13 of 13 Old 05-11-2013, 09:27 AM
CJ7-Tim
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Somebody with experience needs to see inside the diff and feel for any pinion play. You need to take you Jeep to a trusted and skilled mechanic for a proper diagnostic inspection of the differential.

.

A recent Gallup public opinion poll shows the NRA, at 58% approval, has a higher approval rating than either Hillary Clinton or Barack Obama.

Progressive Liberalism: Bringing you new Healthcare ideas so wonderful, they have to include mandatory participation ...

Originally Posted by Ronald W. Reagan: Government is not the solution to our problems; Government is the problem.
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