Right 4 wd on a fourtrak Does Not mean all 4
wheels turn , power always turns the easiest
wheel on any axle/independant set up, they Do
Not have difflock in the diff housing unless your
lucky and have a foreign one !
the set up of 4 wd is thus - Engine, to main
gearbox , to transfer gearbox , to two
propshafts, one goes forward one goes
rearward , they connect to - differentials , which
turn two half shafts (driveshafts ) on the ' axle ' ,
which connect to the wheels (basically )
what is hubs ??
Manual hubs
Auto hubs
permanent locked hubs
these connect half shafts to the wheels
(basically )
manuals : lock in to use 4 wd or can be driven
in locked in 2 wd but spins components an uses
more fuel.
auto : when 4wd is selected and halfshafts start
turning the auto locking mechanism ( nothing
electrical ) grabs and starts turning tyres .
permanent : as it says nothing to select ,
everything is always spinning, also nothing to
go wrong .
Different ways of selecting 4 wd :
2 h (2 wd on rear wheels only )
4 h ( 4 wd, both propshafts turning , same
gearbox speed range as 2wd )
4 L ( 4 wd with a lower ratio of gearing from the
transfer box, makes the wheels turn slower
even when revved)
some 4wd selecting choices :
on a lever sometimes 2h 4h n 4 L
n meaning neutral , the rest self explanatory
on a dashboard you might see 4 h but have a
lever too that says 2 h 4 L ,
this means 4 wd will work in 4 L via the lever or
if you want 4h gearing , leave in the 2 h position
and push the 4 h button , this activates a
solonoid on the transfer gearbox to ' kick' in 4 h
every vehicle has a 4 wd light, which activates in
whatever 4 wd mode
Deactivating 4wd : sometimes when returning to
2 wd you may need to reverse a couple of
meters to make sure its ' knocked out ' ,
push down on cluth to use levers helps too .
this is the basics, as there are soo many
repeated silly questions on 4wd i thought i
would write it , but you can find it in the
handbook of your vehicle anyway .