As the title suggests, does 4H lock the transfer case or not, I wouldn't think so but they advise not to use 4H when on hard surfaces
3.8 ltr petrol
Reason being my son has broken a rear axle which destroyed the bearing mounting plate on his Eaton locker and no spare parts are carried in Australia by Eaton WTF
As he has 4.88 gears we can put the original centre back in less the crown wheel and drive it home, 350 k's
Bob