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stewy said:
I will b using to tow horse boxes and rally cars . So on a wet road for instance , would it be grand to use it then for better grip while towing .
No. And especially not while maneuvering back and forth and in tight places.

is there something i could do to release the wind up after using the 4wd.
Windup is a bit of a misleading term. There's no rubber band being wound up or anything.

In a nutshell, the front and rear wheels are coupled via a central transfer box which has no differential. When going around corners, the front wheels travel along a different arch than the rear wheels. The rigid coupling means the only way this can work is if there's some slip between wheel and ground. On wet or dry tarmac that is not the case. This will cause severe binding (the truck actually bogs down) and eventually something goes >pop<.

Search this site for a more thorough explanation.

does wind up happen in all 4wd jeeps.
No. Some cars and trucks have on-road capable 4WD which usually involves limited-slip differentials both on the axles as well as between the front and rear axles. Some don't and must only be used off road. The Navs are like that.

One might ask: why doesn't everyone use LSDs? In short because they're ***** in many situations, and the fact the Navs handle so brilliantly in the snow is in large part due to their rigid 4WD where no electronics have to persuade some diffs to lock sort-of kind-of.

The best solution would be LSDs on all points (front, rear, center) with all of them manually lockable. The Defenders are like that AFAIK. But that's also the most expensive solution.

Sorry for all the silly questions lads :oops: its just that i want to know if im going to do damage.
Yes you are.
 
Ahtyrrell said:
I think this site could do with a sticky explaining to use of 4x4 on the navs and with that diagram of how wind up occurs. this would save the weekly question about it
actually, you are right - we get this all the time every year!
(If I get time I'll sort summat out)
Mind you - handbook! :study:
 
Ahtyrrell said:
I think this site could do with a sticky explaining to use of 4x4 on the navs and with that diagram of how wind up occurs. this would save the weekly question about it
Hell, yeah.

Oh, and:

does wind up happen in all 4wd jeeps.
Trucks are not jeeps. Trucks are trucks that also have some off-road capabilities, but also have lots of limitations compared to true off-road vehicles like the Jeeps and Defenders. If you want a full-on off-roader and don't care about the bed, don't buy a truck.
 
does wind up happen in all 4wd jeeps.
Trucks are not jeeps. Trucks are trucks that also have some off-road capabilities, but also have lots of limitations compared to true off-road vehicles like the Jeeps and Defenders. If you want a full-on off-roader and don't care about the bed, don't buy a truck.[/quote]

Also Trucks manly and hard,
Jeeps - gay americans or hairdressers.
 
thanks Lil'trucker for the link. and thanks 4x4 fotog for the explaination on it . as i said im new to the site and didnt get time to read all the info on the tranmission stuff .
And from now on navs are trucks not jeeps ,
 
Discussion starter · #50 ·
Just to get back to original thread question,finally tried it out today in snow.In 4wd very impressed with the traction albeit the dodgy turning circle,and then back to 2wd for a little play especially round islands (safely of course ) :)
 
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