Hi folks,

I plan to change the fluid of transfer case on my 1999 sport I6, AWD, automatic. It seems I need a fairly big allen bit to pull out the plugs. Can some one tell the size of drain and fill plugs? Where I can buy this stuff. Auto parts stores only carry small allen bit.

Thanks.

 

Assuming yours is the 231:

"NP231 Transfer Case come with 2 different types of fill and drain plugs. One requires a 30mm socket to remove and the other uses a 10mm allen bit. Determine which you will need and remove the fill bolt. "

Mine had a 30mm socket. U must have the allen.

http://www.4x4xplor.com/trannyservice.html

 

I used 2 quarts of Dextron III when I did my 231j, I believe that's what it takes...Tj

 

X2, did mine yesterday

 

I can only add 1.5 quarts tranny fluid into the transfer case before the fluid overflowing from the fill hole. Does this mean I did not fill the transfer case properly?
By the way, may I use 80W90 gear oil in the front differential instead of 75W90? I happen to have some in stock.
Thanks

 

Intresting enough, my transfer case only held 1.5 qts when I drained and refilled it yesterday also.

I used 80w90 both my differentials. Dana30/Chy8.25