Help me understand the 4HI 4Lo Settings on H3

[Hummer Guy]

<BLOCKQUOTE class="ip-ubbcode-quote"><div class="ip-ubbcode-quote-title">quote:</div><div class="ip-ubbcode-quote-content">Originally posted by jkH1+H2=H3:
Should and does the 4 ^ always stay lit.? Do you need to be in Dive 2 or 3 to have the Rear Differental work?? </div></BLOCKQUOTE>
You probably meant locking rear differential working? In that case, the locking rear will only work when in 4 low lock, but you do not have to be in a lower gear -- but you'll probably want to be!