Ariabozorgi
New member
Can i use the trail 4H in slippery highways like the 4wd system of limited?
Trail or Limited for snow on city roads
- Thread starter MechaPumpkin
- Start date
scanny
Senior Member
yes you can, just make sure you turn on 4hi when your speed is under 50 mph.
You don't need to use 4H in the rain. It isn't going to help at speed on the highways either.
Ariabozorgi
New member
So i can't drive above 50mph in 4H? Also how good is the center diff lock in hard core offroad situations? Thanks
No. As indicated on the sunvisor and in the owner's manual, it's not advised to change from 2wd -> 4wd on the fly while going above 80km/h (50mph). I have once as it was super slick all the sudden and I didn't look at my speed first. Nothing came of it but probably not a good idea to make a habit of it.
I'm not sure how fast you can comfortably go in 4HI.
I'm not sure how fast you can comfortably go in 4HI.
Ariabozorgi
New member
Thanks. now, how good is the center diff lock in hard core offroad situations comparing to rear lock diff? Thanks
Greg_Canada
New member
They are not the same.
Trail's have 2wd, 4hi (locked) or 4lo (locked)
Limited's have AWD (unlocked, torsen LSD in the center diff) 4hi (locked) or 4lo (locked)
Offroad you want to make sure the center diff is locked. Now a rear diff lock sometimes helps more than having 4wd does in some instances.
Here's another stupid question for you guys. I just picked up my 2010 Limited last week. Judging from the answer above, you can somehow lock the read diffs electronically? What the heck is XREAS? I come from the old Land Cruisers. you neither lock the rear pumpkin and center diff or not when the going gets tough. My off roads days are pretty much over a while ago.
Ariabozorgi
New member
I dont think the 2010 limited has a rear diff lock. And xreas is some thing to do with the ride quality i guess but im not expert to explain more in details, probably other guys can help you more.
SShink
New member
I have a 2013 TE and live in slushy snow-rich upstate NY...My take is that the vehicle would be excellent in the snow if it were not for the terrible stock Dunlop AT20 Grand Treks...My Runner easily slides under moderate braking and going around corners over 10mph. I am considering changing my tires to an A/T tire (+$850) for that reason.
sandcrawler
Senior Member
there isn't a rear locker on the Limited. it has a Torsen center diff which enables full-time 4WD (60/40 split; rear/front) and the other locked/unlocked modes detailed above. XREAS cross-links the shocks for supposedly better handling. my personal opinion is meh, and when it inevitably wears out you'll tear it all out rather than pay the astronomically insane cost to replace it anyway. not to say it's bad, just something people that keep their vehicles forever should be aware of.
The Limited is the only one with a diff lock. You can drive in 4H at any speed.
When you lock the center diff, the front and rear axles turn at the same speed, just like the part-time system in the SR5 and TE. In other words, it won't be any different than the SR5 or TE offroad (excepting, of course, that the TE has a locking rear diff).
I live in Boston. During the winter, I use Nokian snow tires. All season tires just suck in the snow.
Center diff is the same as transfer case? It is electronic now on the trail or SR5? Personally, I don't like all the electronic stuff. Tell you the truth, I really know what's the latest and the greatest out there any more with all the electronic gadgets out there. I really shouldn't call them gadgets,should I?
scanny
Senior Member
You can drive above 50mph in 4Hi - There is no speed limit for 4HI.
You just has to turn 4HI on when you're under 50 mph. And you can turn it off at any speed.
It's all in the manual - nothing new here.
Greg_Canada
New member
The center diff is located in the transfer case. It controls the front and rear output shafts.
Toyota has been using this system since the 1990 FJ80 Landcruisers... the technology has been around for a few years...
crunchcity
New member
I'm not entirely sure but they all have some sort of electronic actuator(s), some models more than others.
Pre-13 SR5's have a manual lever that uses an actuator to engage the front wheels, so that's at least one right there.
13 SR5's have an electronic dial that engages the actuator up front.
TE's have a manual lever that engages an actuator up front, and an actuator to engage the rear locker.
LE's have an electronic dial to control the actuator for the center differential lock/transfer case. When it's not engaged it's splitting the torque full time like a Highlander all open differentials, there's no 2WD setting.
Agreed. Torsen has been around for decades -- Audi uses Torsen center diffs in most of its Quatro systems and has been since the '80s. This isn't new, untried technology.
Torsen - Wikipedia, the free encyclopedia
