1. Welcome to Tacoma World!

    You are currently viewing as a guest! To get full-access, you need to register for a FREE account.

    As a registered member, you’ll be able to:
    • Participate in all Tacoma discussion topics
    • Communicate privately with other Tacoma owners from around the world
    • Post your own photos in our Members Gallery
    • Access all special features of the site

Binding 4x4 on pavement question

Discussion in 'Technical Chat' started by Evil Monkey, Nov 4, 2010.

  1. Nov 4, 2010 at 9:50 AM
    #1
    Evil Monkey

    Evil Monkey [OP] There's an evil monkey in my truck

    Joined:
    Aug 8, 2007
    Member:
    #2352
    Messages:
    8,375
    Gender:
    Male
    First Name:
    Robert
    Escondido, CA
    Vehicle:
    07 4x4 DC SR5 TRD Off-road
    Weathertech front & rear mats, rear suspension TSB, Toytec AAL for TSB, Hi-Lift Jack, Bilstein 5100 & Toytec Adjustable coilovers, Built Right UCAs, KMC XD 795 Hoss Wheels, Definity Dakota MTs 285/75R16, Leer XR, Thule Tracker II & Thule MOAB basket
    I have a TRD Off-Road. I know you're not supposed to use 4x4 on dry pavement.

    I'm just wondering why it binds? My understanding is the front is an open differential. Why would it react differently than the rear axle where the wheels turn at a different rate when in a turn?
     
  2. Nov 4, 2010 at 9:52 AM
    #2
    xJuice

    xJuice My spoon is too Big!

    Joined:
    Oct 24, 2007
    Member:
    #3208
    Messages:
    7,329
    Gender:
    Male
    First Name:
    Josh
    North DFW
    Vehicle:
    07 DCSB Sport Prerunner
    Grom iPod/Bluetooth adapter, mud flaps removed, clear turn signal bulbs, TSB leafs, two extra D-rings, debadged, fog light anytime, OEM bed mat, Undercover classic, Hankook Dynapro ATM, Fumoto valve
    I'm pretty sure it's the transfer case that doesn't allow it. The mechanics of it escapes me ATM.
     
  3. Nov 4, 2010 at 9:55 AM
    #3
    98tacoma27

    98tacoma27 :POOPCORN: Staff Member

    Joined:
    Dec 18, 2008
    Member:
    #11714
    Messages:
    48,163
    Gender:
    Male
    First Name:
    Ben
    Beech Creek
    Vehicle:
    05 Tundra SR5, 88 SR5 PU, 98 TRD OR (CRUSHED)
    5100's all on fours
    Because you will have two wheels (one front right, one rear left IIRC) that will be spinning at the same rate.
     
  4. Nov 4, 2010 at 10:00 AM
    #4
    OffroadToy

    OffroadToy The dog did it...I swear!

    Joined:
    Sep 12, 2009
    Member:
    #22680
    Messages:
    5,049
    Gender:
    Male
    High Desert
    Vehicle:
    07 TRD OFFROAD 4x4 VSC/TRAC/DAC/HAC
    snugtop supersport canopy, black westin bullbar/tube steps, piaa offroad lights, weathertech floor mats, oem bed mat, trd seat covers, avs inchannel vent visors, 2" suspension lift, front diff drop, rear differential breather extension, oil filter drain hose, a/c drain hose extention & reroute, front window tint, cat theft protection plate, tailgate clamp mod, xpel headlight/foglight protecters, oem block heater, bfg 265/75R/16 a/t k/o's, cabin air rodent protection screen, rcbs illuminated 4X4 switch mod
  5. Nov 4, 2010 at 10:02 AM
    #5
    Brunes

    Brunes abides. Staff Member

    Joined:
    May 31, 2008
    Member:
    #7011
    Messages:
    17,730
    Gender:
    Male
    First Name:
    Rotorhead
    Big Easy, USA
    Vehicle:
    08 Red/Graphite and Satin Black
    Inside: Tint, Wet Okole 1/2 Piped Red/Black Covers, Black Weathertech Digital Fit Mats, URD Short Throw w/ TWM Weighted Knob, USA Spec iPod adapter. Outside: 4300K Retro w/ Angel Eyes and Red Shrouds, 5000K Blazer Fog Light Retrofit, Debadge, Bed Locking Handle, Satin Black Rims Performance: TRD/Steigmeier Blower w/ 2.7 Pulley. 668 Injectors and 320 LPH AEM Fuel pump. URD UCON and 7th Injector. DTLT Headers, URD Y-Pipe, Wicked Flow Muffler. Suspension: Both: OME Shocks Front: 886X's and TC UCAs Rear: Dakars Armor: Relentless Front Bumper Relentless High Clearance Rear w/ Tire/Rotopax Swing Out Relentless Front, Mid, and TCase skids BAMF Diff Skid Recovery and Spares: Fullsize Spare Tire 2x2 gal Rotopax 1x1 gal Rotopax 1x1 gal Water Rotopax Warn 9.5XP-S Winch Hi-Lift Extreme 60" Ironman Off-Road Recovery Kit Upcoming: ATO Gas Tank Skid and Sliders w/ kickout. ATO Shackle Flip Kit. Down the line: Front/Rear ARB Lockers w/ OBA. 4.56 Gears
    The bind is not left to right but front to back as I understand it. You are right- The open diff allows the drivers and passenger sides to spin at different speeds. But there is no inter-axle differential...so the tires need some latitude to slip when both the front and rear diffs are tied together.
     
  6. Nov 4, 2010 at 10:05 AM
    #6
    Evil Monkey

    Evil Monkey [OP] There's an evil monkey in my truck

    Joined:
    Aug 8, 2007
    Member:
    #2352
    Messages:
    8,375
    Gender:
    Male
    First Name:
    Robert
    Escondido, CA
    Vehicle:
    07 4x4 DC SR5 TRD Off-road
    Weathertech front & rear mats, rear suspension TSB, Toytec AAL for TSB, Hi-Lift Jack, Bilstein 5100 & Toytec Adjustable coilovers, Built Right UCAs, KMC XD 795 Hoss Wheels, Definity Dakota MTs 285/75R16, Leer XR, Thule Tracker II & Thule MOAB basket
    Cool, thanks everyone. I thought it was a left-right bind issue but it's a front-back bind.

    From the article:
    The transfer case on a part-time four-wheel-drive system locks the front-axle driveshaft to the rear-axle driveshaft, so the wheels are forced to spin at the same speed. This requires that the tires slip when the car goes around a turn. Part-time systems like this should only be used in low -traction situations in which it is relatively easy for the tires to slip. On dry concrete, it is not easy for the tires to slip, so the four-wheel drive should be disengaged in order to avoid jerky turns and extra wear on the tires and drivetrain.
     
  7. Nov 4, 2010 at 10:12 AM
    #7
    whippersnapper02

    whippersnapper02 Well-Known Member

    Joined:
    Dec 20, 2009
    Member:
    #27905
    Messages:
    35,214
    Gender:
    Male
    First Name:
    Christian
    Yorba Linda, CA
    Vehicle:
    10 MGM TRD OR 4wd Auto DCSB
    Banks Monster Exhaust, Pop n Lock tailgate lock, Hook-Ups tie down brackets, USA Spec Ipod adaptor, WO seat covers, color matched grill with Grillcraft insert, Tuffy locking bed box
    Click the link in my sig for a detailed and animated explanation. You will be tested. LOL
     
  8. Nov 4, 2010 at 10:05 PM
    #8
    David K

    David K Well-Known Member

    Joined:
    Jun 27, 2009
    Member:
    #18969
    Messages:
    9,062
    Gender:
    Male
    San Marcos, Alta California
    Vehicle:
    2010 4WD Off Road DC
    Differential Breather Mod Light Bar: 2 Hella 4000 HID, 1 Cibie Halogen. Bilstein 5100s Ride Rite Air Bags
    Full time 4WD or AWD has a third differential that allows the front and rear driveshafts to rotate at different speeds= no binding. Off road rigs with full time systems have a differential lock-out for serious off roading where you want an even split between the front and back driveshafts... AWDs that don't have the center differential locker have unequal split of power to the front and rear.

    (yes, I know it all is in that great link.. I just like typing it out ;) )
     
  9. Nov 5, 2010 at 6:22 AM
    #9
    Tacoyota

    Tacoyota senile member

    Joined:
    Jul 22, 2009
    Member:
    #20028
    Messages:
    2,966
    Gender:
    Male
    North of Cali, South of Canada
    Vehicle:
    08 4wd
    4.56 gears, rear trutrac,DT header, 235/85r16 Duratracs, 2nd filter pulled, inter.wipers, Cruise control, Factory alum. whls/winter tires(2nd set), Afe pro Dry-S , Dumbo eared flaps cut down.
    power goes 50/50 front and rear but the axles follow 2 different paths on a corner. the front axle will be out wider than the rear axle if you hold a turn and look. That is essentially 4 different diameter turns for 4 different tires. With more traction pavement allows stress builds until released......hop hop hop This getscompunded with locked diff. that wont allow left /right speed differences. Mine has 2 open diffs , the bind comes from a fron and a rear tire with the most traction ... one releases eventually.
     
  10. Nov 5, 2010 at 8:31 AM
    #10
    Janster

    Janster Old & Forgetful

    Joined:
    Mar 25, 2007
    Member:
    #1138
    Messages:
    13,813
    Gender:
    Female
    First Name:
    Jandy
    Lancaster, PA
    Vehicle:
    2007 4.0L 4x4 TRD Sport Access Cab A
    Advantage Torza top (tri-fold), Husky floor mats, RuffTuff seat covers, C2C hood struts, Homelink mirror, USA Spec PA15-Toy (120gig Classic & 8gig nano), Garmin Nuvi 660, Protecta Bed mat, Pop-n-lock, TSB Springs, Scangauge II, Heated drivers seat, Fumoto drain valve, Aries pushbar, PIAA 540 fog lights, Hood scoop grahics, Flowmaster 50 series dual catback exhaust, RainX Latitude windshield wipers, Husky rear floor liner (ontop of folded down seats). Console Vault.
    You must also understand...

    When you make turns while in 4WD, the CV JOINTS bind up.
     
  11. Nov 6, 2010 at 6:56 AM
    #11
    Lewman

    Lewman Member

    Joined:
    Mar 23, 2010
    Member:
    #33793
    Messages:
    9
    Gender:
    Male
    First Name:
    Aaron
    Saint John, NB
    Tonneau Cover, Trail FX ss Bullbar, Grillcraft Custom Grill, K&N filter, Leather Interior,
    Just wondering if you put it in 4WD on pavement and turned or backed up and turned will it wreck anything?
     
  12. Nov 6, 2010 at 7:40 AM
    #12
    newfie8

    newfie8 Well-Known Member

    Joined:
    Mar 9, 2009
    Member:
    #14512
    Messages:
    247
    Gender:
    Male
    newfoundland
    Vehicle:
    09 tacoma
    Tinted windows all around. Fog lights. Intermittent wiper switch. Skid plate. Extra D rings. Grillcraft. Color matched grill. Hella 500ff HID behind grillcraft. Rcbs204 Lighting. 5100's up front. 265/75/16 Duratracs.Firestone riderites. Bora Wheel spacers. Tinted tails. De badged. Blacked out rims.
  13. Nov 6, 2010 at 8:05 AM
    #13
    Evil Monkey

    Evil Monkey [OP] There's an evil monkey in my truck

    Joined:
    Aug 8, 2007
    Member:
    #2352
    Messages:
    8,375
    Gender:
    Male
    First Name:
    Robert
    Escondido, CA
    Vehicle:
    07 4x4 DC SR5 TRD Off-road
    Weathertech front & rear mats, rear suspension TSB, Toytec AAL for TSB, Hi-Lift Jack, Bilstein 5100 & Toytec Adjustable coilovers, Built Right UCAs, KMC XD 795 Hoss Wheels, Definity Dakota MTs 285/75R16, Leer XR, Thule Tracker II & Thule MOAB basket
    If you did it a little bit it probably wouldn't hurt it but it's definitely not good for it as it puts a lot of strain on the drivetrain.
     
  14. Nov 6, 2010 at 10:32 AM
    #14
    DevL

    DevL Well-Known Member

    Joined:
    Feb 23, 2010
    Member:
    #31952
    Messages:
    1,922
    Gender:
    Male
    Dont turn sharp in 4wd on pavement. Switch to 2wd for that.
     
  15. Nov 6, 2010 at 10:51 AM
    #15
    OffroadToy

    OffroadToy The dog did it...I swear!

    Joined:
    Sep 12, 2009
    Member:
    #22680
    Messages:
    5,049
    Gender:
    Male
    High Desert
    Vehicle:
    07 TRD OFFROAD 4x4 VSC/TRAC/DAC/HAC
    snugtop supersport canopy, black westin bullbar/tube steps, piaa offroad lights, weathertech floor mats, oem bed mat, trd seat covers, avs inchannel vent visors, 2" suspension lift, front diff drop, rear differential breather extension, oil filter drain hose, a/c drain hose extention & reroute, front window tint, cat theft protection plate, tailgate clamp mod, xpel headlight/foglight protecters, oem block heater, bfg 265/75R/16 a/t k/o's, cabin air rodent protection screen, rcbs illuminated 4X4 switch mod
  16. Nov 6, 2010 at 11:29 AM
    #16
    David K

    David K Well-Known Member

    Joined:
    Jun 27, 2009
    Member:
    #18969
    Messages:
    9,062
    Gender:
    Male
    San Marcos, Alta California
    Vehicle:
    2010 4WD Off Road DC
    Differential Breather Mod Light Bar: 2 Hella 4000 HID, 1 Cibie Halogen. Bilstein 5100s Ride Rite Air Bags
    Guys... 4WD is for when 2WD won't drive you any further.. at least for off the dry pavement. Since turning your truck on dry pavement does not require 4WD, that is a good indicator to not put it in 4WD. It is so difficult to turn a truck around on dirt in 4WD, I put it in 2WD when steering is difficult.
     
  17. Nov 6, 2010 at 11:33 AM
    #17
    David K

    David K Well-Known Member

    Joined:
    Jun 27, 2009
    Member:
    #18969
    Messages:
    9,062
    Gender:
    Male
    San Marcos, Alta California
    Vehicle:
    2010 4WD Off Road DC
    Differential Breather Mod Light Bar: 2 Hella 4000 HID, 1 Cibie Halogen. Bilstein 5100s Ride Rite Air Bags
  18. Dec 28, 2010 at 8:36 AM
    #18
    DanT

    DanT Old Member

    Joined:
    Dec 27, 2010
    Member:
    #48302
    Messages:
    179
    Gender:
    Male
    First Name:
    Dan
    Richland, WA
    Vehicle:
    4WD 2.7L SR5
    Clearly the Tacoma 4WD should only be engaged on slippery surfaces, not on dry pavement. What I find amazing is that Neither the 2010 manual nor the dealer tells you this. Particularly when the manual directs you to drive in H4 for 10 miles once a month to lubricate the system, they should advise that you should only do this while driving in a straight line or off road, preferably both.

    The way the manual reads, you'd think it is no big deal to drive in 4WD mode whenever you feel like it.
     
  19. Dec 28, 2010 at 8:53 AM
    #19
    David K

    David K Well-Known Member

    Joined:
    Jun 27, 2009
    Member:
    #18969
    Messages:
    9,062
    Gender:
    Male
    San Marcos, Alta California
    Vehicle:
    2010 4WD Off Road DC
    Differential Breather Mod Light Bar: 2 Hella 4000 HID, 1 Cibie Halogen. Bilstein 5100s Ride Rite Air Bags
    As soon as you try to steer in 4WD, on dry pavement, you will know you shouldn't be in 4WD! If it is hard to do, then find an easier way!
     
  20. Dec 28, 2010 at 9:37 AM
    #20
    Veccster

    Veccster bass turds

    Joined:
    Aug 8, 2008
    Member:
    #8407
    Messages:
    2,085
    Gender:
    Male
    First Name:
    Eric
    Pittsburgh - The City of Champions
    Vehicle:
    2009 DC V6 TRDsport
    5100's all around - fronts at 1.75", 265/70/17 Bridgestone Revo 2, HID headlights and fog lights, factory skid plate, ss exhaust tip, tube steps, Access roll-up tonneau cover, Redline hood struts, 6 D-rings, seat MagLite, LED dome, fumoto oil drain, DTRL, fog light anytime, Kenwood/Clarion speakers, Pop-N-Lock 5300, LED bed lights and a few other things...
    My 4wd use is mostly when driving in the snow. And I LOVE the challenge of "can I make this in 2wd???" I enjoy challenging my truck and quietly beat my chest when I make it in 2wd. But if I am stopped and can no longer move forward in 2wd, I switch to 4wd and usually ease right through it (or up it).

    The problem is when you are tracking on something that requires 4wd and forget to switch back to 2wd when you reach pavement. Of course you will know it when you try to turn but...its not good for the drivetrain.
     
To Top