4WD problemette...

[Thomas-the-Terrano2]

on a a part time 4x4 same place we all do when you throw the lever into 4hi.

locks the rear output shaft to the front one, even on auto hubs this is the
point of no return, split second later the front prop via the diff and the half
shafts locks the front wheels via the auto hubs. once these locked all front
end spins like your fixed hub front end, providing you dont reverse in 2 hi
auto hubb'ed front ends will continue to be spinning waiting for that old dog
clutch to kick in.

the transfer lever combines 2 separate functions of engaging 4wd and
high to low. on some boxes its possible to split the functions, via twin lever
conversion. handy if you wanted to shunt heavy on hard surface, though
care would be needed due to torque doubling effect of low box. the same
effect can be unofficially enjoyed with manual hubs as the 4wd spin all
way down to the unlocked hubs but the front wheels would get the drive.

for more fun could fit manual hubs to rear axle and simulate front wheel
drive or save the rear prop on a suspended tow, like an enhanced version
of truck being in neutral in transfer box....