When/How to use 4x4?

I could be wrong...but I swear the front and back turn at the same speed.
You say you shouldn't go straight because it puts a lot of load on the drivetrain.

Yet tplenty of others will say, you can drive straight if anything you cannot turn unless conditions allow wheel slip since your front and rear wheels travel different distances and speeds while turning. Manual does say only use when slip is allowed, should not be used on dry.

Just saying, your post says its not recommended yet anything I can find on it says you should only be going straight.
Regardless, yes really shouldn't be in 4x4 unless you need it...but from what I've always understood about 4x4 from when I had my jeep and in my uncles trucks, you can't turn with 4x4 and should only be going straight.
But even then I only ever used it when conditions were slippery and it was needed.

 

Hahahaha stopppp......

You have the same gears front and rear.....your front and rear axles and tires turn at the same speed, I promise

 

that's what I was thinking lol.

I was scratching my head, have I been completely lost all this time and misunderstood?
I've always understood they are both moving at the same speed as there is no centre diff which is why you can't turn.
In the manual it does say you shouldn't use it on dry conditions, but regardless they move at the same speed hence why you shouldn't be turning without it.

 

This is what my manual says.

There's a reason why you only use it on tracks that permit the tire to slide. The fronts have to turn faster than the rears of you can't steer.

 

Wrong

 

When cornering, the outside tires must turn fast than the inside tires and that is the reason 4WD use should be limited to terrain which allows tire slippage.

Not because the front tires turn at a different speed than the rear while in 4WD.

Go prove it to yourself if you don't believe me.....here's a very easy test for you to perform.

Go drive your truck in a straight line on the highway at 50 mph and engage 4wd high. Notice any tire squealing? Sliding? Chirping? Loss of control resulting in a rollover crash?

No? That's because your front and rear axles are turning at the same speed!

 

jeebus. yeah the front wheels turn more quickly when the chassis moves that way, duh. what cannot happen is the drivetrain actually driving the fronts faster than the rears. that requires f to r staggered gearing and you won't find that for sale at any dealer.

 

Now, go take your Bicycle (or your kids bicycle or whatev) and wheel it outside. Squeeze the rear brake and push it via the handle bars.

Notice anything crazy? Yea, the rear wheel is dragging and sliding BECAUSE the FRONT and REAR axles are moving at different speeds!

 

Pretty sure Toyota wouldn't let you engage 4wd up to 70mph if this was the case. Like I said in my last post, I engage it on the highway with slush and black ice when going 30 to 40mph.
Also all 4 wheels should be going the same speed in a straight line. Turns of course thats different. Doesn't make sense for the front wheels to be pulling the truck, it would cause all kinds of hell for the rear..

 

the front and back tires only travel at a different speed while turning, and thats what the front and rear differential do. They control the difference in speed from left to right. Not front to back. part time 4x4 doesn't have a centre diff.

your gears are the same in the front and rear. wheels are both turning at the same speed front to back. Thats why you can't use it dry. Any turning causes the transfercase to bind.

 

60mph

70 it won't let you engage.

 

My head hurts

 

that post made me think of this
https://www.youtube.com/watch?v=vacBxnLocA8

 

I also have a 2010 Jeep Liberty it has the best of both worlds.4 wheel drive system is an option called Select Trac it has 2wd,4wd auto that can be left engaged all the time if wanted and 4wd low.I live in North West Ohio where the Original Jeep plant is located.Jeep wrote the book on 4wd everything out there is copy off there system in my opinion there system the best.

 

There's one youtube channel I follow of a bunch of aussies.
all of them are in land cruisers except one in a jeep.
he's the only one without lockers and still gets through no problem.

They always say in each video too, the jeeps traction control system is incredible, given he doesn't need lockers

 

Jeeps traction control system sucks.....it is antiquated and outdated compared to Toyotas Atrac/MTS/CC. (Not talking grand Cherokees, they're a league of their own).

Limited slip is still a factory option on wranglers.....

 

I've seen newbs trying to show thier buddies how awesome they're jeep is before.......a 4cyl with an open rear differential will always bring on the disappointment!

 

This is not true, the front and rear differentials of a stock part time 4wd truck have the same gear ratio and turn at the same speed. The front and rear wheels follow different tracks when turning so the wheels must slip or turn at different speeds which is why full time 4wd has a center differential.

 

Don't post anymore.