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73-87 Chevy _ GMC Trucks => 4 Wheel Drives => Transfer Cases and Front Drivelines => Topic started by: copekyle on November 26, 2007, 03:44:40 pm

Title: NP203 checking and filling oil
Post by: copekyle on November 26, 2007, 03:44:40 pm

Ok, I'm about to install a part time kit on my NP203.  What I need to know is how to check the oil level and re-fill the oil after it's been drained on the transfer case.  I know to use 10W30 to refill, I just need to know where to fill it.  I'm new to this so I apologize if that is a stupid question.

Thanks
Kyle

Title: Re: NP203 checking and filling oil
Post by: VileZambonie on November 26, 2007, 04:21:33 pm

It's not a stupid question. You should see a fill plug on the transfercase. You fill it to the bottom of the fill plug on level ground. I'll see if I can dig up a pic.

Title: Re: NP203 checking and filling oil
Post by: VileZambonie on November 26, 2007, 04:26:44 pm

(http://www.chuckschevytruckpages.com/images/anp203_.jpg)

www.chuckschevytruckpages.com/drivetrains.html

Title: Re: NP203 checking and filling oil
Post by: ssgoodman on November 26, 2007, 08:54:53 pm

is 10w30 the recommended oil for a transfer case?  i thought it was 90 weight like rear-ends.

Sutton

Title: Re: NP203 checking and filling oil
Post by: Captkaos on November 27, 2007, 12:54:37 pm

Not in a NP203.  You are thinking the gear driven version.

Title: Re: NP203 checking and filling oil
Post by: copekyle on November 27, 2007, 01:24:20 pm

Thank you so much!!!!  That's just what I needed!