Not what you want to find in your t-case :( - Defender Source
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  #1  
Old October 9th, 2016, 07:02 PM
Tyler Wirken
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Not what you want to find in your t-case :(

Went to change in the oil in my LT230 and found a big chunk of metal stuck to the magnet on the drain plug. Pulled the bottom cover to inspect and find many more.

I am pretty sure it is remnants of a broken shim or washer behind the last gear towards the back of the case. See photo where I circled it.

So what is this part? Truck seems to be running fine with no chunking or grinding etc... only a gear whine I seem to notice more nowadays. Obviously this is not good and I need to address it. So what is the best solution? New t-case, rebuilt one? Worth trying to tackle it and replace it? How does this sort of thing break?

What will happen when and if that "shim" gives way completely?

Thoughts?

Thanks

Tyler
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  #2  
Old October 9th, 2016, 07:30 PM
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Who knows why it failed. Doesn't matter why it failed (defect in shim or plain misfortune), its compromised. Worth picking up a used LT230 give how cheap they are.
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  #3  
Old October 9th, 2016, 08:13 PM
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Even as easy as they are to change, I'd be very gentle on range changes and drive it till something really goes wrong.

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------ Follow up post added October 9th, 2016 08:14 PM ------

But that's just me

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  #4  
Old October 9th, 2016, 08:18 PM
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Quote:
Originally Posted by crown14 View Post
Even as easy as they are to change, I'd be very gentle on range changes and drive it till something really goes wrong.

Sent from my SAMSUNG-SM-N920A using Tapatalk

------ Follow up post added October 9th, 2016 08:14 PM ------

But that's just me

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I could go either way. If it fails catastrophically you will be stranded. I'd start looking for a used one.
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  #5  
Old October 9th, 2016, 08:21 PM
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Buy a used one out of a disco. Swap it out and call it a day.

Of course, I would run it until it failed and swap in the spare on the side of the road. :-)
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Old October 9th, 2016, 08:29 PM
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Originally Posted by Jymmiejamz View Post
I could go either way. If it fails catastrophically you will be stranded. I'd start looking for a used one.
But Jimmy, you only ever drive on paved roads so why would you be scared of being stranded.

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  #7  
Old October 9th, 2016, 08:32 PM
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I wouldn't care being stranded off road. Being stranded in NYC is a nightmare. There is only one tow company allowed to tow you off of the highways and they won't tow you any further. I was charged $140 to be towed 150 yards off of the highway to be left in a no parking zone. I then had to wait for the second tow truck to get me there and tow me to the dealership.
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Old October 9th, 2016, 08:39 PM
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Point taken

I equally love and hate driving through NYC. I love it because it's so risky, and I hate it because stuff like you just mentioned.

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  #9  
Old October 9th, 2016, 08:42 PM
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Quote:
Originally Posted by evilfij View Post
Buy a used one out of a disco. Swap it out and call it a day.

Of course, I would run it until it failed and swap in the spare on the side of the road. :-)
I call bullshit. The old Ron yeah, this new affluent guy, no way.
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  #10  
Old October 9th, 2016, 08:42 PM
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Quote:
Originally Posted by crown14 View Post
Point taken

I equally love and hate driving through NYC. I love it because it's so risky, and I hate it because stuff like you just mentioned.

Breaking down off road isn't a big deal in most cases since you likely have no where you have to be. Breaking down on your way to work and showing up at 11 AM sucks.

I actually like driving in traffic in NYC more than anywhere else because there are so many roads. If you get stuck in traffic in downtown Richmond, you have nowhere else to go.
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  #11  
Old October 9th, 2016, 08:56 PM
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I call bullshit. The old Ron yeah, this new affluent guy, no way.
Affluent, is that a word for drunk?
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  #12  
Old October 9th, 2016, 11:03 PM
Tyler Wirken
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Now to just find a case. Found an 02 DII locally.

Correct me if I wrong but that is one year that won't work due to no diff lock yes?
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  #13  
Old October 9th, 2016, 11:07 PM
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Quote:
Originally Posted by Tyler Wirken View Post
Now to just find a case. Found an 02 DII locally.

Correct me if I wrong but that is one year that won't work due to no diff lock yes?
'03 no difflock if I recall, but they brought it back in '04.
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  #14  
Old October 10th, 2016, 12:33 AM
Tyler Wirken
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From what I have read it looks like the '02 transfer boxes didn't even have the diff lock in the case and maybe '03 as well. '99-'01 had it in the case but not hooked up and then they brought it back in '04. Hard to say if the '02's will work.
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  #15  
Old October 10th, 2016, 12:43 AM
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02 no diff lock. Need to swap the front housing to get the diff lock. Not to mention the front driveshaft flange.
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  #16  
Old October 10th, 2016, 01:05 AM
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Affluent, is that a word for drunk?
No, thats effluent.

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  #17  
Old October 12th, 2016, 04:02 PM
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Quote:
Originally Posted by Tyler Wirken View Post
Went to change in the oil in my LT230 and found a big chunk of metal stuck to the magnet on the drain plug. Pulled the bottom cover to inspect and find many more.

I am pretty sure it is remnants of a broken shim or washer behind the last gear towards the back of the case. See photo where I circled it.

So what is this part? Truck seems to be running fine with no chunking or grinding etc... only a gear whine I seem to notice more nowadays. Obviously this is not good and I need to address it. So what is the best solution? New t-case, rebuilt one? Worth trying to tackle it and replace it? How does this sort of thing break?

What will happen when and if that "shim" gives way completely?

Thoughts?

Thanks

Tyler
Hi Tyler,

I guess these parts you've found are parts of a taper bearing, because the shims are inside the bore, behind the outer rings.

Kurt
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