Originally Posted by Dizturbed One
I do have the proper GM adapter, but I am very nervous about getting gear oil in the freshly rebuilt transmission is all. Many on the K-5 site I frequent simply use ATF in the NP205 to alleviate those fears. However, mine recently started leaking the ATF pretty steadily. Thanks for your reply.
typically the trans oil enters the t-case, not the other way around.
This happens when the seal between the two oils , gets old and hard... trans oil slips by, fills up the t-case.
The gears in the 205 were designed with gear oil. Your t-case, run the oil you wish