Enlighten me on 4wd please
Hall Of Fame
Joined: Jun 2005
Posts: 14,228
Likes: 19
From: Riverton, UT
RE: Enlighten me on 4wd please
ORIGINAL: desertracer
Nobody here has a locked front differential, unless they put one in aftermarket. They are all open. 2wd is really 1wd and 4wd is really 2wd, unless you have a limited slip or locker in the rear, then you're 3wd.
Just because all four tires have power in the ice or snow doesn't mean the diffs are locked. It happens when no tires have traction. But as soon as 1 tire gets traction, it will stop and the opposite one will keep spinning and you'll continue to go nowhere.
Nobody here has a locked front differential, unless they put one in aftermarket. They are all open. 2wd is really 1wd and 4wd is really 2wd, unless you have a limited slip or locker in the rear, then you're 3wd.
Just because all four tires have power in the ice or snow doesn't mean the diffs are locked. It happens when no tires have traction. But as soon as 1 tire gets traction, it will stop and the opposite one will keep spinning and you'll continue to go nowhere.
tbasse01
so
I have the nv144 transfer case
on myswitch I only have a 2wd and 4 lock
so what does that mean?
some thing must lock up
cause man one day on dry pavement I put in 4 lock and I could not even turn
and the snow is like it is not even there, my buddy durango with the 4 hi/lo switch was spinning the tires in 4wd mine will not at all zero!! even if I try
2002 durango SXT 4.7 48000 miles
so
I have the nv144 transfer case
on myswitch I only have a 2wd and 4 lock
so what does that mean?
some thing must lock up
cause man one day on dry pavement I put in 4 lock and I could not even turn
and the snow is like it is not even there, my buddy durango with the 4 hi/lo switch was spinning the tires in 4wd mine will not at all zero!! even if I try
2002 durango SXT 4.7 48000 miles
The only way to fully lock your differentials is to install a locker into your gearing or to have posi-traction which is a fully locked (all the time) diff.
Now if you would have locked yours into 4 Low you could have spun your tires a small bit. I would never recommend this unless you want to be doing major repairs. Not to mention a 4.7L doesn’t have those kind of *****. Now I have seen 4.7L D's rock and roll but they have some performance in them. (Not to dis my buddies)
Turning in 4X4 is not advised! (Two words "Axel Bind") Look into the attached info I provided. Take the time to read through this info.
All Star
Joined: Sep 2006
Posts: 868
Likes: 0
From: Oshawa, ON, Canada
RE: Enlighten me on 4wd please
Turning in 4X4 is not advised! (Two words "Axel Bind") Look into the attached info I provided. Take the time to read through this info.
my only unasnwered question, and I'm sure I've read the answer, i just really need you to dumb it down... Assuming you're in 4HI, how can you get axle bind in an open diff?
Rookie
Joined: May 2007
Posts: 53
Likes: 0
RE: Enlighten me on 4wd please
I believe it has nothing to do with the diff's
if you are going straight really no issue
but on dry surface with no slip the issue is when turning the radius of the travel in the tires changes hence you get bind?
but never use 4x4 on a dry surface unless you want to break things
if you are going straight really no issue
but on dry surface with no slip the issue is when turning the radius of the travel in the tires changes hence you get bind?
but never use 4x4 on a dry surface unless you want to break things
Hall Of Fame
Joined: Jun 2005
Posts: 14,228
Likes: 19
From: Riverton, UT
RE: Enlighten me on 4wd please
You got it. As you turn, the front wheels turn farther than the rear wheels.This is where you get "axel bind".
Now 4 HI does have clutch packs so some slippage is delt with. Now the problem in the link is assosiated with the (NV-242-HD) Part Time Transfer Case.In PT case there is no clutch packs so you will blow your case with axel bind. This is why it is only used in very slipery conditions and also only used for Part Time Use!
In the same NV-242-HD Part-Time case it also has a selection for regular 4 Hi. In this selection it does have clutch packs to deal with this problem.
Now the front diff does not release the tention when switching from side to side. So therefore not open. There is no clutch packs in the diff's.
Now the thing here to remember is; There are to different transfer cases. Part Time, and regular.
Deerang
I think we are getting off track in this thread and need to open a new one dealing with this issue.
Now 4 HI does have clutch packs so some slippage is delt with. Now the problem in the link is assosiated with the (NV-242-HD) Part Time Transfer Case.In PT case there is no clutch packs so you will blow your case with axel bind. This is why it is only used in very slipery conditions and also only used for Part Time Use!
In the same NV-242-HD Part-Time case it also has a selection for regular 4 Hi. In this selection it does have clutch packs to deal with this problem.
Now the front diff does not release the tention when switching from side to side. So therefore not open. There is no clutch packs in the diff's.
Now the thing here to remember is; There are to different transfer cases. Part Time, and regular.
Deerang
I think we are getting off track in this thread and need to open a new one dealing with this issue.