Novak Conversions Jeep Wrangler JK shifters

Transfer case leak

ptrm99

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Joined
Feb 1, 2024
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3
Location
Big Lake MN
My 2010 2 door sport transfer case is leaking. Haven't been able to find the source, looks like it is near the rear of the unit. I'm guessing this is going to be a real pain if I need to drop the case.... Any thoughts on probable leak source?
 
My 2010 2 door sport transfer case is leaking. Haven't been able to find the source, looks like it is near the rear of the unit. I'm guessing this is going to be a real pain if I need to drop the case.... Any thoughts on probable leak source?


Can you post a picture of where it looks like it's coming from?
 
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My 2010 2 door sport transfer case is leaking. Haven't been able to find the source, looks like it is near the rear of the unit. I'm guessing this is going to be a real pain if I need to drop the case.... Any thoughts on probable leak source?

Do you have pictures of what your seeing...a couple from different angles would be great.
 
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Leak is coming from the lower half. The bolt is wet too.

IMG_0427.jpeg


IMG_0426.jpeg
 
I guess I should get up to speed! My dana 300's and Atlas II did not take ATF!! This JK thing trips me out
 
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I guess I should get up to speed! My dana 300's and Atlas II did not take ATF!! This JK thing trips me out

Haha, well I'd like to blame the JK, but Jeep started transitioning to ATF+ for t-cases as soon as they got away from gear-driven t-cases. I can't recall the exact model year switch (I think '79... the same year they went to vacuum-disconnects on the D44 front), but I believe it was the NP208/NP219 in the FSJ's that first got a chain-driven t-case (and thus a fluid pump vs splash-lubricated).
 
Haha, well I'd like to blame the JK, but Jeep started transitioning to ATF+ for t-cases as soon as they got away from gear-driven t-cases. I can't recall the exact model year switch (I think '79... the same year they went to vacuum-disconnects on the D44 front), but I believe it was the NP208/NP219 in the FSJ's that first got a chain-driven t-case (and thus a fluid pump vs splash-lubricated).

So what is the low down on the jk t case? I was told they are really stout.
 
So what is the low down on the jk t case? I was told they are really stout.

They are - and much quieter compared to old, cast-iron geared cases. That said, when they give up the ghost, they often do so in a spectacular fashion. My JKU has 209,000 miles and when I swap in the Hemi/ZF later this summer, I'm simply going to rebuild it and not worry.
 
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They are - and much quieter compared to old, cast-iron geared cases. That said, when they give up the ghost, they often do so in a spectacular fashion. My JKU has 209,000 miles and when I swap in the Hemi/ZF later this summer, I'm simply going to rebuild it and not worry.

I had the same thought. My usual way is to pop in an atlas II before I’m stuck in a trail. This one I’ve been convinced it’s worth waiting.
 
I had the same thought. My usual way is to pop in an atlas II before I’m stuck in a trail. This one I’ve been convinced it’s worth waiting.

The NP241 is a full service grade stronger than the previous Jeep TJ NP231 and is comparable to many full-sized pickup and SUV t-cases from over the years, including many V8-powered rigs (my '93 Ramcharger with 500hp/550tq stroked out small block ran a NP241 without issue, and my old '78 Ramcharger running a big ol' 440 cid big block, spinning (big for the time!) 38" bias-ply swampers never skipped a beat :)
 
The NP241 is a full service grade stronger than the previous Jeep TJ NP231 and is comparable to many full-sized pickup and SUV t-cases from over the years, including many V8-powered rigs (my '93 Ramcharger with 500hp/550tq stroked out small block ran a NP241 without issue, and my old '78 Ramcharger running a big ol' 440 cid big block, spinning (big for the time!) 38" bias-ply swampers never skipped a beat :)

Good to hear. Mine has 61k on it. Was never really wheeled until I bought it with 58k on it.
 
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Novak Conversions Jeep Wrangler JK shifters