Author Topic: Transfer case gets warm  (Read 1204 times)

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Lewis Hein

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Transfer case gets warm
« on: May 03, 2017, 08:56:25 PM »
Hi Marlinitic Crawlerites,

I have a brief question about transfer cases. Today, after a 20 mile drive in 2H, I backed the truck in 4LO (actually 2LO because the hubs weren't locked) into it's parking spot. When I did this, I noticed a funny grinding noise. And then I noticed that the T-case shift lever felt warm to the touch. Not hot, but noticeably warm and warmer closer to the T-case.

Is this feeling warm normal for the T-case shifter? I feel like in any case there is an oil change in the near future of this T-case.




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Re: Transfer case gets warm
« Reply #1 on: Nov 28, 2017, 06:50:53 AM »
Sounds fairly normal to me. However, i'd def check fluid level and if there appears to be any metal in the fluid as it's possible some bearing(s) might be bad.


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Re: Transfer case gets warm
« Reply #2 on: Dec 02, 2017, 08:17:21 AM »
Nothing to worry about, lots of gears turning and they get warm. Make sure your fluid is topped and clean!!
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Re: Transfer case gets warm
« Reply #3 on: Dec 02, 2017, 12:04:36 PM »
I would expect it to be at least as hot as the transmission or rear differential.
1989 4Runner: Dual Ultimate (Inchworm front & Marlin 4.70 rear), Marlin Twin Stick, 1200-lb clutch, 4.88 R&P, Aussie Front, Detroit rear, 30-spline Longs, Long hub gears, ARP hub and knuckle studs & 35x12.50 Cooper STT PRO tires.  Marlin rear bumper & sliders.  FROR front bumper.  SAS with Alcan springs & Rancho 9000XL shocks.  Budbuilt Bolt-on traction bar.  Custom Interior Cage by Those Guys Rod and Customs.

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Re: Transfer case gets warm
« Reply #4 on: Dec 03, 2017, 06:21:12 AM »
Both my 5-speeds, this one in my 1986 and my old 1985, the t-shifter would get “hot” enough that I could hold my hand around the base for few seconds, and just low enough temperature that I didn’t have to let go of it immediately.  I was running RedLine MT-90 in both the tranny and t-case in my '85.

The tranny shifter was almost that hot.

If you don’t know the condition of your gear oil in your transmission and t-case, change them.  In extreme cold winters, I’d be using full synthetic… Mobil 1 or RedLine.

« Last Edit: Dec 04, 2017, 02:34:01 AM by Gnarly4X »
1986 XtraCab SR5 22RE 5speed W56B, ~26,000 MI after break-in, DIM (Did It Myself) rebuilt engine - .020" over, engnbldr RV head, OS valves, 261C cam, DT Header.


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Re: Transfer case gets warm
« Reply #5 on: Dec 03, 2017, 05:25:46 PM »
I cooled down the heat of the tranny by putting a heat shield (upside down U using home heating exhaust ducting) around the exhaust down pipe until it got to the cat.
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