Haven't changed the fluid in the diff. And yes it sits a lot. He has only used it one hunting season and its been pretty much sitting since. He discovered during hunting season that is was not going into 4x4 but the new switch on the t-case fixed that. Sounds like we may just have a sticky slide...
I have been trying to help my brother fix his 96 Limited Edition 4runner. At first it would not engage 4x4. We checked and found a bad switch on the transfer case actuator motor. Not it will go into 4x4 but will not disengage from 4x4. With the vehicle not running but with the key on we can hear...
