Have Transmission Questions? Ask a Mechanic for Answers ASAP
If the transmission shifts fine but the transfer case is shifting into 4x4 on its own, then this is not a transmission problem it is in the transfer case, or the controller for the t-case. A rebuilt transmission will NOT solve this problem.
If you can get it home I would be more then happy to help walk you through trouble shooting this problem, as well as making the needed repairs. As long as you have basic tools and a digital volt meter we can work together and fix this problem.
What time would be good for use to get together and do some testing?
I have, and 90% of the time the actuator is the problem.