Hey guys, I tried my 4wd (4h)on my 2011sr5 , I went on a dirt road for 10 miles at 14mph to try it out . When I got back to the parking lot I stopped put it in neutral and into 2h. It would not engage into 2 high I tried going 5mph and the manual shifter flopped back down into 4h. I tried the same procedure but went in reverse and it went back to 2wd. Anyone have thoughts or issues like that