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Manual Shift Transfer Case Questions

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Old Nov 30, 2007 | 06:39 AM
  #1  
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From: Rogers, MN
Manual Shift Transfer Case Questions

I have a transfer case that has the lever on the floor of the truck. With the front hubs locked in should I be able to switch into 4WD (High) on the fly, or do I have to stop first? I thought I remember being able to switch on the fly last winter. It will shift just fine if I stop first, but I just thought that I was able to shift on the fly at 50 MPH last year. I changed the fluid a month or two ago, and I tried to shift on the fly after that and I got a grinding noise and it wouldn't go into 4 high. The oil that I drained out of the T-Case was brown and didn't flow like ATF. Everywhere I read says that I am suppose to fill it with ATF? I just want to make sure that everything is working correctly. Any help/info would be great. Sorry for the really long post. Thanks in advance.
 
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Old Nov 30, 2007 | 07:29 AM
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Yes, you can shift on the fly, but you'll get grinding if your front hubs are not locked.

Mercon ATF is the correct fluid for the case, per your owner's manual.
 
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Old Nov 30, 2007 | 08:48 AM
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Ok, thanks. I will have to make sure it works before the snow flies tomorrow. Maybe the problem was that I didn't have my hubs locked in. Thank you.
 
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Old Nov 30, 2007 | 09:48 AM
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From: Carlos, MN
You should be able to shift on the fly to 4hi. To go to 4Lo though you need to be in nuetral, and have your foot on the brake.
 
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Old Nov 30, 2007 | 10:29 AM
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From: Rogers, MN
Ok, thanks. I think I didn't have the hubs locked in since it was dry outside and I was just warming the fluid up and just mixing the new fluid. Operator error. Doh!
 
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