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Old 04-01-2011, 10:01 PM   #1
perkalator's Avatar
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np231j t-case overheating

I just installed a 4" lift, SYE and CV drive shaft with 33" tires. My transfer case is extremely hot to the touch after driving for a 7 miles. I noticed that there is a new plug below the speedo gear on the new tail shaft housing provided with the omix ada slip yoke eliminator. Is this a new fill level. I do need to pitch the rear end up about 1 more degree to get the drive line in proper geometry. How hot does this t-case run in a stock set up. I never went under the jeep and checked when I had the 2" budget boost. Has anyone had this issue and what do I need to do. It has brand new ATF-4 full synthetic tranny fluid.

2' budget boost wanting to grow up
4" on 33 x12.50
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Old 04-02-2011, 06:49 AM   #2
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did you make sure the oil pump tube was inserted properly with o- ring when you installed your s.y.e ?

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Old 04-02-2011, 08:23 AM   #3

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They get hot. I was surprised at how hot normal is. Find a buddy that has a stock jeep and check it after running a while then decide if yours is overheating. That said, the pump pickup tube is a pain to get back in place as you pit the case together.
1999 Sahara
D30 w/powertrax no-slip,D35 w/ultimate 35 upgrade OX locker,4.56 gears,Air on Board, Mile Marker Winch
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Old 04-02-2011, 08:41 PM   #4
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not trying to be a smart ass but check the oil level and make sure it got some
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Old 04-02-2011, 09:24 PM   #5
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no smartass here but.........its next to the exhaust
Pincho De Lapiz
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Old 04-03-2011, 09:15 PM   #6
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Originally Posted by 98 wrangler View Post
did you make sure the oil pump tube was inserted properly with o- ring when you installed your s.y.e ?
Thats my guess as well, That o-ring doesn't hold very well.


My Jeep is NOT an suv and Your suv is NOT a Jeep
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