Front hubs?

DazzaMTD

New Member
Can you lock ur front hubs in and drive without putting the car in 4H or 4L? I was reading my owners manual (Facinating reading) and it recommended that you drive 16k every month with them locked in to ensure that they get lubricated. This is only if you don't go 4wding often, but should you do it??:confused:
 

Traveller

Well-Known Member
yep, but better still, use it in the bush!
Maybe you should come to the Vic social day, maybe one of us can give you a quick
going over your hilux. A few pointers/tips to set you in the right direction.
 

phs

Well-Known Member
yes you should but dont do it and then go for a 100km drive down the fre way at 110km/h

every month chuck it in 4wd hi or low and lock the hubs got for a drive around the block.
if you never do it then all of a sudden want to go 4x4ing and give it a hard time dont be suprized if some thing brakes. lubrication is the key to makeing moveing parts last
 

gdog

Member
Locking the hubs for 16k without engaging 4wd is fine. You probably wont even notice. But if you can't do 16k on a dirt track every month, I"m going to ask where is your commitment? ;)

Your not doing it for you your doing it, cause it has to be done! :)

Depending on your experience, Traveller has a great idea.
 

Traveller

Well-Known Member
I wouldn't lock the hubs, chuck it 4wd and go driving around the block though, will wind the diffs/axles up.
Can lock hubs, or, put it in 4hi and have a drive, but not both where there is good traction;eg bitumen
 

phs

Well-Known Member
it's only around the block to get the oil moveing, the diffs are not diff locks the front will work like the back, ie like any awd car both diffs working, any explanaiton why at slower speeds useing 4WD for a short trip on the road to keep lubrication is bad ? ?

im not trying to be a smart ass just want to know because the way i see it is the rear diff is doing the exact same thing every day so why would 5 mins every month of makeing the front diff actually move the car on the road like the rear is doing every time you drive it not good. id under stand if a locker of some sort was fitted as it would put some sort of small strain on the diff but even then only around the block ? iv got friends and even my self in the past have had a mini spool in a car thats been on the road heaps of times with out any problems.
 
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gdog

Member
It's not about speed. It's about traction.
If your running 4wd without a slip clutch somewhere in the drive train, you'll get transmission wind up. You'll notice a dramatic loss in power at some stage. Bad for the gearbox and diffs.
 

phs

Well-Known Member
fair call but im talking 5 mins a month. im not saying go out and jump on the freeway or gonig shopping with it on only around the block to get all 4wd parts moveing
 

4X4

Moderator
yes you should but dont do it and then go for a 100km drive down the fre way at 110km/h

every month chuck it in 4wd hi or low and lock the hubs got for a drive around the block.
if you never do it then all of a sudden want to go 4x4ing and give it a hard time dont be suprized if some thing brakes. lubrication is the key to makeing moveing parts last

As has been stated previously, don't put your 4WD into High or Low range on any hard surface that can't allow wheelspin! You will introduce Transmission windup! Why stress your driveline if you don't need to?

Locking the front hubs without engaging 4WD is the way to do it. Locking the hubs allows the front wheels to turn the front diff as you drive. I often lock my front hubs well before I put it into 4WD.
 

Traveller

Well-Known Member
Full time 4by's, awd's etc usually have a locking device to lock front drive to rear to
become 'four' wheel drive (not all awd's are able to do this)
eg; range rover-centre diff lock. When the centre is locked the set up becomes the same as
say a patrol, cruiser, hilux in 4hi.
Hopefully someone better with words can help me out in this explanation, but I wouldn't
lock everything up and drive on *****y for even 5 mins when there are better ways to
keep the drive lubricated.

not having a go at you phs:D

Jok
 

4X4

Moderator
AWD vehicles are able to drive on a hard surface because they have a centre diff lock. They provide drive proportionately to the wheels, IE 40% drive to the font and 60% drive to the rear, other AWD vehicles have variations on this. This allows the front wheels to turn at different speeds to the rear wheels during cornering. When the centre diff is locked it provides 50% drive to the front wheels and 50% drive to the rear wheels.
 

Nofuss

New Member
been following this disscusion but tho only thing that needs lube are the cv's once every second month just slip it into 4x4 no need to lock in the hubs as they will turn around in side the axle tubing. normal driving eg:- curb hopping, turnning, general driving does move oil around in the differential. The biggest probblem is the the slip handle for locking in the hubs .sieze up from lack of use and people washing thier wheels with high pressure cleaners. water kills all diecast parts. But as the saying go's if you dont use it you will lose it.:D
well thats my 2 bob worth
 

4X4

Moderator
been following this disscusion but tho only thing that needs lube are the cv's once every second month just slip it into 4x4 no need to lock in the hubs as they will turn around in side the axle tubing. normal driving eg:- curb hopping, turnning, general driving does move oil around in the differential. The biggest probblem is the the slip handle for locking in the hubs .sieze up from lack of use and people washing thier wheels with high pressure cleaners. water kills all diecast parts. But as the saying go's if you dont use it you will lose it.:D
well thats my 2 bob worth

When a hub is in the free position, it allows the wheels to turn independently of the differential. With the hubs in the free position,the front differential remains stationary during normal driving.

Turn the hubs to the lock position and they will turn the front differential during normal driving.
 

phs

Well-Known Member
ok i stand corrected 5 MINS of engaugeing 4WD a month on the road is bad...
ill just leave it at that......
 

suttoh

New Member
hi all, ive read the posts on this subject and im confused, ive just bought a new nissan navara 2.5 turbo, is it good or bad to lock the hubs without engaging hi or low and drive for a small amount of time, just local no freeway stuff obviously, any advice is helpful??
 

Nofuss

New Member
When a hub is in the free position, it allows the wheels to turn independently of the differential. With the hubs in the free position,the front differential remains stationary during normal driving.

Turn the hubs to the lock position and they will turn the front differential during normal driving.

yes that is true , but if you put it into 4x4 mode with out locking in the hub the diff center will still turn for lubbing bearrings ect . this what I meet :eek:
 

Nofuss

New Member
hi all, ive read the posts on this subject and im confused, ive just bought a new nissan navara 2.5 turbo, is it good or bad to lock the hubs without engaging hi or low and drive for a small amount of time, just local no freeway stuff obviously, any advice is helpful??

No not bad good to keep it all lube up just rember to unlock hubs when finished ,A freinds Navara has auto locking hubs , i guess that was an optional extra on that car.
 

stets

New Member
ok there seems to be a bit of confuion, so i will try to sort it out

yes it is wise to lock your hubs for a short time every month, and just as wise to run it in 4h/4l once in a while too.............. just dont do it together on tar.



scenario 1......... lock your front hubs in on both sides of the vehicle, leaving the 4wd selecter stick in 2H
this will lock the wheels to your front axles there in turn causing your front diff, tailshaft and uni joints etc to start spinning, creating lubrication and just clearing out the bugs.

there are a few small problems when doing this.......... in some cars you can feel like your steering has gotten heavy, dnot stress, this is due to auto lockers being installed..........in many vehicles, you will get a slight vibration at middle to high speeds (60 kph plus) this is due to the front tailshaft not being balanced (in most cases) dont stress, just keep the speed lower and go for your cruis, its not big drama...................


scenario 2. leave your front hubs unlocked (in the free position) and by using your 4wd selector stick engage 4H/4L. this will still have your vehicle in 2wd just like normal, but you will be driving the rear wheels via your transfer gears this method will also lube the front diff and tailshaft etc but does not lock your cvs to the axles. the only draw back to this method is when in 4L, you will have 4L gearing which in some cases can be benefitial(reversing heavy trailers etc)


both scenarios activate pretty much the same parts except the ultimate ends (hubs or selector levers)
it is best to try both methods each month if you can, this will free up everything.

by using both methods simultaniosly, you are forcing you vehicle into 4wd when it is not needed, do not confuse 4wd with awl as they are 2 totally different things (even full time 4wd is different again)

if you have a manually operated 4wd system in your car or if you have a centre diff lock, do not engage this on high traction surfaces period!!
doing this creates alot of stess on driveline componenets and your weakest links will be put to the test (in most cases the weakest links are cvs or uni joints) this stress is created by traction.

in best case scenarios all is fine, but it is very common for 4wd to be difficult to disengage, if you suffer from difficult disengagement, slowly reverse in a straight line while trying to disengage 4wd either manually (with the stick) or by pushing the button. you will notice when it disengages by the feel of the car/steering.

worst case scenario, i have heard of cases in which transfer gears have been stripped needing a complete gearbox out overhaul.

the best method to solve this problem is to find a sand track or bush track once a month and go for a quick drive engaging 4wd (using both scenarios together), or better even... find a group of fellow 4wders and go for a full day trip or weekend away everymonth. not only will your 4wd thank you for it, but you will be released from the bounds of civilisation and feel better within your self for doing it.

cleaner air, good company, closer friends, socialisation, engaging 4wd, seeing this great country etc etc...... the real reasons to own a 4wd
 

goldrush

Moderator
Scenario 2 as suggested by Stets is only good for vehicles with FREE WHEELING HUBS. Do NOT try this if your vehicle has AUTO LOCKING HUBS.
 
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