Dude before you keep spouting off all this misinformation, maybe do some actual research on the Bronco T-case. Everything you described is wrong and none of the models work that way. I have posted pictures of the internals of the transfer case wet clutches and ball ramps on other threads several times. There is NOT a splined connection in 4A!!! It uses wet clutches. When you switch to 4H THEN you get a splined (locked) connection.It is 2h but it’s 4A which means if it detects slipping it will switch automatically from 2h to 4h and 4L
This type of transfer case was 1st used successfully in the isuzu models in 1998. I have extensive experience and knowledge on them. Back then, we hacked them by adding power to the electro magnets by a thumb switch on the shifter. You could be in a 2wd drift on gravel and touch that button. And instantly get front traction. It was fantastic for driving VERY fast on forest service roads. I may offer something similar in the near future.
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