after my 1" bl and bmml i put the jeep in 4H. sounded a lot noisier than i remember. went down underneath and disconnected the linkage at the trunnion bolt. set the lever up in the cabin to 4L then set the tc into 4L with my hands and adj/connected the linkage back together. drove around and everything's quiet going < 25mph then this louder whining noise will come back once i go faster than 25mph. i'm wondering what it is? it subsides when i take my foot off the gas pedal, but will then come back spontaneously when i'm coasting too. i can't tell if its vibrations or the tc/transmission. maybe new linkage from teraflex is the cure? i just don't want to be driving in 4wd if its hurting the tc/trans. when i'm in 2w there's no noise.