need help please

[65fj40]

i have an np205, when i pulled the plug tranny fluid came out, i called a gm dealer and asked if this was the right stuff for it..he said they can have tranny fluid or gear oil. now im told that this is not true..gear oil is only used.can someone please help me out so i dont put the wrong stuff in it.

thanks

 

[skyshark186]

Ive always used gear oil.

 

[Paul_A]

NP205 uses gear oil. ATF probably did not hurt anything, but it ain't what it was designed to use.

 

[lone gunman]

one stuppid question, do you have the turbo 350 auto in front of it. if its automatic trans than your seal between the auto and the 205 went. its time to replace, if you get gear oil in the automatic its not a good thing. i had the same thing happen in my 72 chevy 4x4. you will have to pull at least the t/case and replace the seal. good luck!

 

[orangefj45]

general rule of thumb: everything cast iron takes gear oil.

the 205 will work fine with anything in it, but should use 90wt. i'd also guess that the adapter seal is bad. easiest way to figure that out is to pull the fill plug first. if fluid comes out, then it's draining from the auto trans into the t-case.

 

[camcruiser13]

gear oil