tansfer case fluid

[kustom71]

I know it has been covered but i just checked out my gm service manual and for a full-time tansfer case it says motor oil,for a part-time case it says gear oil.My question is if you convert a 203 to part-time shouldnt you use gear oil then??????Truck is 77 /forums/images/graemlins/truck.gif

 

[az-k5]

10W-30

 

[83ZZ502_Jimmy]

10W-30

 

[lukebaby1]

10w-30 synthetic

 

[crazy427]

10w-30 synthetic
IZZ Slipperierier

 

[kustom71]

ok thanxs just wanted to check!!!!!!!!!!!!!!!!! /forums/images/graemlins/rotfl.gif

 

[lukebaby1]

10w-30 synthetic will take heat better too. doesn't break down as easy a mineral oil /forums/images/graemlins/angryfire.gif

 

[K30CJ]

Good timing for this post. I was checking over my '78 beater that I just bought, and found it had gear oil in the NP203. It has a part time kit in it, so I was wondering if gear oil was recommended after the kit was installed. I'll change it to 10W30 syn.