T4R Limited transfer case!
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harper7
Senior Member
Do you want to know when or how to use the different settings.
The Limited.....
H4F is what you will normally drive in 99% of the time and the Torsen center diff will work it's magic to ensure traction to all 4 corners.
You can shift into H4L when you have slippery conditions(snow,sand,gravel,loose dirt ect). 4HL operates the same as the part time locked with a 50/50 split and don't do sharp turns on dry pavement or dry rocks or drive on dry pavement for extended lengths of time.
Use L4L when you need max traction like going up or down a really steep hill or think you are in a place that you could get stuck as the low gearing multiplies your torque and ATRAC functions. If you feel like your getting stuck,don't panic and keep the rpms nice and steady at around 2000rpm in L4L and ATRAC will work it's magic. Maximum speed is around 20-25mph in L4L.
Here is the video on the how.......notice the vehicle they show from the outside in the video ! DOH?
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Very thorough answer, thank you... That pretty much covers it all.
I didn't get mine yet and just wanted to know how and when to use it before I get in to it. Still trying to locate a Shorline Blue with Beige interior and a 3rd row in NY area but haven't found one yet. I might have to special order it and wait a couple of months.
I didn't get mine yet and just wanted to know how and when to use it before I get in to it. Still trying to locate a Shorline Blue with Beige interior and a 3rd row in NY area but haven't found one yet. I might have to special order it and wait a couple of months.
It is only a problem when the Torsen is locked. If it isn't locked, there's no issues turning on hard surfaces.
dekeman
New member
As Harper notes, it is a non-issue 98 per cent of the time and not an issue when in H4F. It's only when in H4L that you need to be cautious, and if you're in that mode, it's probably because conditions warrant, so you'd be taking it easy anyway.
As far as I know, there is no rival to the Torsen system.
Thanks. I guess I should have said that I thought the Torsen was always unlocked (in H4F and H4L)--i.e., I thought the Torsen allowed a non-locked four wheel drive (like a limited slip or something). I have driven in the rain in H4L a few times on the highway; I didn't need it but thought what the hell. Shouldn't be a problem, I suppose.
Thanks for the info, guys.
It does. As long as you don't lock it! When unlocked, the Torsen center diff is limited slip. When locked, the front and rear driveshafts turn at the same speed.
Since the front and rear differentials take different paths around corners (the rear diff takes a shorter path), the rear driveshaft needs to turn fewer revolutions than the front when going around a corner. When the Torsen is unlocked, it allows the front and rear driveshafts to turn at different speeds, allowing you to go around corners even on high traction surfaces. When the Torsen is locked, the front and rear driveshafts turn at the same speed -- this isn't a problem when you are offroad as the tires can provide the necessary slip.
Furthermore, when you locked the center diff, that turns off electronic spin protection. And you probably want the ESP to be active when driving in the rain.
No need to. Leave it unlocked in the rain.
In summary, for a 5th gen limited (or any 4th gen trim line):
- 4WD high with center diff unlocked is fine on all surfaces.
- 4WD high with center diff locked is for slippery surfaces only, and is primarily used offroad.
eastwood1008
New member
L4F setting?
Is there a setting for L4F (unlocked) in the 2006 4Runner Limited V8's transfer case? I think that it's just a matter of whether or not you push the button to lock or unlock it, but I want to be sure. (I just got mine 2 days ago, so I'm still on a steep learning curve!) Thanks!
Is there a setting for L4F (unlocked) in the 2006 4Runner Limited V8's transfer case? I think that it's just a matter of whether or not you push the button to lock or unlock it, but I want to be sure. (I just got mine 2 days ago, so I'm still on a steep learning curve!) Thanks!
Yes. Read your manual.
The 4th gen has two different switches -- a rotary dial that lets you switch for 4 Hi to 4 Lo, and a pushbutton that locks the center diff. The rotary switch is to the right of the steering wheel, the center diff pushbutton is low and to the left of the steering wheel. The two switches are independent. So, yes, you can be in 4 Lo unlocked.
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