Looking for possible diagnosis

Here is the situation. I have a 2008 SR5 Double Cab with a 5.7L and 4 wheel drive. A couple of months ago I had a situation where the truck went bizerk with the four wheel drive system and would not come out of it. I did the research and came up with the transfer case module. Because of time and money my mechanic decided to clean the terminals. It went back to normal and all was good. I just took it on a 2400 mile cross country trip. I would say around the 1800 mile mark of the journey, I stopped at a rest stop. A couple of hours later I hear this bang in the front left of the truck. Another hour goes by and I go to start the vehicle and the 4 lo light is flashing. I’m thinking oh crap. I run it through the switch and get it to turn off the 4 lo light. I hear another bang from the front left. 600 miles later and I’m driving. The truck is pulling hard to the left. I run it through the transfer switch from left to right then right to left. No more pulling to the left. Any ideas? Is it the transfer case module? Something else? Thanks

 

Thanks. I haven’t been using it at all lately. I’m thinking the same thing. I’m just trying to see if any other people have had this issue.

 

Yes. I must admit that I have been really bad about that too.