Why not to use part time 4WD on pavement

***Corey*** · 11-16-2007, 07:13 AM

Good explanation here.
Many will try to use part time 4WD in the rain, I never do.
You need some slippage ladies and gents when using 4WD hi or 4WD low with a part time system.

http://www.4x4abc.com/4WD101/def_turnpart.html

Here is why a full time 4WD can be used on pavement.
http://www.4x4abc.com/4WD101/def_turnfull.html

Hoopster · 11-16-2007, 09:42 AM

So is the AWD button on my '99 limited considered part-time or is it similar to a full time set-up and safe for the asphalt? I was under the impression that this was the only setting safe for use on road.

gilby4runner · 11-16-2007, 09:51 AM

Good question Hoopster- I have the AWD option on my 02. I always thought that it was ok for on the road (snow or possiblity of slippery conditions). My traction control still works in AWD mode. Are we wrong in assuming AWD is safe for the pavement?

mjwalfredo · 11-16-2007, 09:59 AM

I am not 100% sure the system on your vehicles but as long as you can put it in AWD without locking the center differential, you should be fine. If the center diff is locked then it would not be safe to use on pavement. Someone correct me if I am wrong please.

ozziesironmanoffroad · 11-16-2007, 09:59 AM

i dont know why, and i cant read that diagram, but i do know 4x4 is bad to use on the pavement. this kid at work, (todays his last day btw) said his friend made a jeep cherokee into a dragster, and uses 4low to get up to speed. does this sound idiotic? i mean i know it helps to get up to speed, if you do it the right way, but doin that on the concrete? OUCH!

bob200587 · 11-16-2007, 10:07 AM

I use mine in heavy rain, sometimes....and I avoid tight turns.

Djlarroc · 11-16-2007, 10:12 AM

Good thread. I know the times I have tried out a 4WD veh, it feels really bad on pavement. I have and Infiniti QX4 and it's kinda weird. It has a switch for 2HI, AWD, but then also has a transfer case shifter? WTF? I've never moved that, when driving in snow, i'll just turn the switch to AWD and it does great.

gilby4runner · 11-16-2007, 10:16 AM

I have two different options in high-
1. AWD- without center diff locked (VSC- on)
2. 4x4- with the center diff locked (VSC- off)
Option on seems fine on the road but option two is not for road purposes

***Corey*** · 11-16-2007, 10:32 AM

I do believe AWD is OK on pavement as mentioned the center diff is not locked.

The FJ Cruiser with the 6 speed manual tranny is full time 4WD, hence lower MPG than the 5 speed auto like I have.

11-16-2007, 07:13 AM	#1 (permalink)
*Corey* Co-Founder/Administrator Staff Join Date: May 2002 Location: Auburn, Washington Posts: 23,762	Why not to use part time 4WD on pavement Good explanation here. Many will try to use part time 4WD in the rain, I never do. You need some slippage ladies and gents when using 4WD hi or 4WD low with a part time system. http://www.4x4abc.com/4WD101/def_turnpart.html Here is why a full time 4WD can be used on pavement. http://www.4x4abc.com/4WD101/def_turnfull.html __________________ Corey 2007 FJ Cruiser ARB bumper, Warn XD9000, OME lift, roof top tent, so much more, see my website & buildup thread PNW FJ Cruisers ☺ Detailing 101 ☺ Join Topsites ☺ Muffler Comparisons ☺ Maggiolinas In The Wild FJ Cruiser Buildup ☺ New Roof Top Tent ☺ Video Of My Penthouse ☺ Rehinge Your ARB/Engel Fridge

11-16-2007, 09:42 AM	#2 (permalink)
Hoopster Registered User Join Date: Dec 2006 Location: kentucky Posts: 233	So is the AWD button on my '99 limited considered part-time or is it similar to a full time set-up and safe for the asphalt? I was under the impression that this was the only setting safe for use on road. __________________ Remember the Constitution? Ron Paul does. RonPaul2008.com ( Hope for America! ) But I was interested now to see something I had not noticed in 1984: in a long discussion on the flip side, "Why a BANKRUPT AMERICA?" there is a quotation from "Congressman Ron Paul." "I think it is high time that the American people found out exactly what the 'Fed' is up to in its domestic dealings, as well as in its relationship with foreign governments and international banks."

11-16-2007, 09:59 AM	#4 (permalink)
mjwalfredo Registered User Join Date: Dec 2005 Location: Blythewood, SC Posts: 537	I am not 100% sure the system on your vehicles but as long as you can put it in AWD without locking the center differential, you should be fine. If the center diff is locked then it would not be safe to use on pavement. Someone correct me if I am wrong please. __________________ -Marcus 1997 4Runner Limited 4x4, E-Locker, Bilstein HDs, Air Springs, Deckplate Mod, 265/75/16R Bridgestone Deuler A/T Revo

11-16-2007, 09:59 AM	#5 (permalink)
ozziesironmanoffroad Contributing Member Join Date: Sep 2007 Location: Spring Valley, CA Posts: 4,091	i dont know why, and i cant read that diagram, but i do know 4x4 is bad to use on the pavement. this kid at work, (todays his last day btw) said his friend made a jeep cherokee into a dragster, and uses 4low to get up to speed. does this sound idiotic? i mean i know it helps to get up to speed, if you do it the right way, but doin that on the concrete? OUCH! __________________ The 22r series engines are made from the fires of hell, and will fight tooth and nail to not be sent back. 1988 Toyota P/U 4x4 22RE 258,000 miles on original motor pioneer CD deck 31x10.50x15 BFG A/T BAJA 100W lights on prerunner bumper KC Daylighters 100W rancho rs5000 MUD IS A VALID PAINT JOB! If not living life to the fullest, why live it? my trucks official buildup thread

11-16-2007, 10:07 AM	#6 (permalink)
bob200587 Contributing Member Join Date: Feb 2005 Location: Nashville, TN Posts: 2,802	I use mine in heavy rain, sometimes....and I avoid tight turns. __________________ 87 4runner 4x4 SR5 22RE ARB Bull Bar, 31X10.50 Mastercraft M/T's, Stock 4.10 Gears, Mellowtone Muffler AISIN Manual Hubs, Marlin Crawler Sliders 181XXX miles 92 Ford Ranger 4x2 4.0L 4 speed auto FOR SALE Needs Transmission And Head gasket work. Contact me for Details. Facebook "An Open Mind is Like a Fortress with its Gates Unbarred and Ungaurded." "There are two kinds of people in this world that go around beardless: boys and women, and I am neither one." -Greek saying

11-16-2007, 10:12 AM	#7 (permalink)
Djlarroc Contributing Member Join Date: Jun 2007 Location: Denver, CO Posts: 1,321	Good thread. I know the times I have tried out a 4WD veh, it feels really bad on pavement. I have and Infiniti QX4 and it's kinda weird. It has a switch for 2HI, AWD, but then also has a transfer case shifter? WTF? I've never moved that, when driving in snow, i'll just turn the switch to AWD and it does great. __________________ '89 4Runner: 22RE 5spd, 4:10s w/202K, 16x8 w/265-75 MT, Diamond headlights, Aisin hubs, Tortis' custom roll on paint job, Home made bikini, 1" Body Lift, 1.25" greasable lift shackles, TG Sliders, 1.5" BJ spacers, Rust is gone! - SOLD! '00 4Runner: Locked F/R

11-16-2007, 10:32 AM	#9 (permalink)
*Corey* Co-Founder/Administrator Staff Join Date: May 2002 Location: Auburn, Washington Posts: 23,762	I do believe AWD is OK on pavement as mentioned the center diff is not locked. The FJ Cruiser with the 6 speed manual tranny is full time 4WD, hence lower MPG than the 5 speed auto like I have. __________________ Corey 2007 FJ Cruiser ARB bumper, Warn XD9000, OME lift, roof top tent, so much more, see my website & buildup thread PNW FJ Cruisers ☺ Detailing 101 ☺ Join Topsites ☺ Muffler Comparisons ☺ Maggiolinas In The Wild FJ Cruiser Buildup ☺ New Roof Top Tent ☺ Video Of My Penthouse ☺ Rehinge Your ARB/Engel Fridge

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