My original belief was correct, my front axles were locking together in 4Hi. They're now trying to lock in 2wd. I was cruising down the interstate a while back at 70 when they tried to engage. It sheared something off but is still clicking like it is trying to engage. I had to remove my vacuum line to get it to quit clicking. My 3 button lights are always blinking and were since the day I got it. It really was never an issue, it would always engage and disengage just fine until this past winter when I made the above post and then in spring when it did this. I've just been driving with the vacuum line off and trying to buy time until I could fix it. I don't know if blinking lights and the half engaged locker are related or not but I would love some direction on this matter. Thanks