6 wheel land rovers

[Ean Austral]

Gday All,


Are the 6 wheel army landies a true 6 wheel drive or are they a 4WD with a lazy axle.


Thanks in advance.


Cheers Ean

[Barefoot Dave]

G'day Ean.
The Perenties are a 6x4 (front and middle axle) normally.
Engage CDL and the rear axle drive PTO is also engaged. True 6x6.

[weeds]

G'day Ean.
The Perenties are a 6x4 (front and middle axle) normally.
Engage CDL and the rear axle drive PTO is also engaged. True 6x6.

Umm, I always thought they were 6x6 with CDL.......didn't realize with CDL not engaged there is only drive to two axles

[Barefoot Dave]

Weeds, that would account for the additional wear on the intermediate tyres, wouldn't it?
While I have never claimed to be a spanner, and defer to an ex-one, all documents I have refer to CDL/PTO engaged, part time 6x6.
Blknigt?

[weeds]

A mate of mine has confirmed they are 6x4 until CDL is engaged......

[303gunner]

Umm, I always thought they were 6x6 with CDL.......didn't realize with CDL not engaged there is only drive to two axles
It's not the CDL itself that directs drive to the third axle, but the vacuum switch that engages the CDL also provides vacuum that engages the rear axle. They are separate and have two different vacuum diaphragms, just engaged by the one switch.


It is possible to re-plumb the hoses using a second switch to give separate engagement of the rear axle without the CDL, however, then the rear and mid axles will be in mesh with no differentiation, so only recommended for unsealed roads.

[123rover50]

It's not the CDL itself that directs drive to the third axle, but the vacuum switch that engages the CDL also provides vacuum that engages the rear axle. They are separate and have two different vacuum diaphragms, just engaged by the one switch.


It is possible to re-plumb the hoses using a second switch to give separate engagement of the rear axle without the CDL, however, then the rear and mid axles will be in mesh with no differentiation, so only recommended for unsealed roads.

It does not matter if the CDL is in or not.
If the 3rd axle is locked in, its locked in with no differentiation between rear and mid.
The CDL concerns only the front.

[weeds]

I treated my 6x6 just like my defender, as soon as I hit the dirt I would pull the switch........

If you set it up just to engage the third axle and not CDL is wind up still an issue?? I'm guessing not as I drove mine 300 + km on bitumen with the vacuum switch engage as I busted a front axle.......didn't notice any wind up

[303gunner]

It is possible to re-plumb the hoses using a second switch to give separate engagement of the rear axle without the CDL, however, then the rear and mid axles will be in mesh with no differentiation,.........It does not matter if the CDL is in or not.
If the 3rd axle is locked in, its locked in with no differentiation between rear and mid.
Isn't that what I said? :confused:

[123rover50]

Isn't that what I said? :confused:

It was.
It was the" however , then the rear and mid axle etc etc" made it sound as if they were only locked together with the CDL
No problem just thought the ininitiated might have misinterpreted it:)

[Aaron IIA]

If you set it up just to engage the third axle and not CDL is wind up still an issue??
If the tyres are exactly the same rolling diameter, then you will not get any wind up. The majority of wind up occurs when turning corners as the front axle traves further than the rear axle/s. WWII era 6x6 trucks have permanant drive to both rear axles with no power devider.
Aaron