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running in 4x4

Discussion in 'Commercial Snow Removal' started by DBL, Feb 10, 2006.

  1. DBL

    DBL PlowSite.com Addict
    Messages: 1,310

    i know one of my drivers runs around 4hi all the time because he forgets to take it out of 4wd is this bad for the truck running it like that on the road
     
  2. DeereFarmer

    DeereFarmer PlowSite Veteran
    Messages: 3,296

    It does not help any, but as long as it is in 4wd hi and he does not beat the truck, it should be OK. Tell him to remember to take it out!!!!:dizzy: :eek:
     
  3. mkwl

    mkwl 2000 Club Member
    Messages: 2,361

    I doubt it will hurt the truck, may wear the tires out faster though, especially if it's on dry pavement.
     
  4. crazymike

    crazymike Senior Member
    from Toronto
    Messages: 639

    avoid driving in it on dry pavement in 4hi, but more so in 4lo

    I keep it in 4hi most of the time. My truck came with electronic transfer case and constantly switching back and forth scares me.
     
  5. oldmankent

    oldmankent PlowSite.com Addict
    Messages: 1,318

    I'd say avoid running in 4hi on dry pavement too. Give the driver a 2wd truck. He'll be all set.
     
  6. DBL

    DBL PlowSite.com Addict
    Messages: 1,310

    what exactly is the difference between 4hi and 4lo i really dont know
     
  7. crazymike

    crazymike Senior Member
    from Toronto
    Messages: 639


    4HI is regular gearing, but all 4 wheels. Your speeds, etc.. are the same in all gears.

    4LO is lower gearing. You will find you can't go over 40 and you redline. In reverse you can't go fast at all.
     
  8. Fordistough

    Fordistough Senior Member
    from USA
    Messages: 394

    DO NOT engage the 4X4 unless completely nessicary! It wears everything out and does a lot of damage when you turn the wheels. It also wrecks the tires. It also uses a lot more gas. NOT a good idea to ride around in 4X4

    -Thann
     
  9. crazymike

    crazymike Senior Member
    from Toronto
    Messages: 639


    4HI is designed for driving in adverse conditions at road speeds. It says so in your manual. Wether it be rainy, icy or snowy conditions. Unless the road is dry, it won't wreck your tires or gears.

    4LO is not designed for highway speeds.

    Neither will cause damage when turning unless on dry pavement. On loose dirt/gravel it doesn't make a difference.
     
  10. DBL

    DBL PlowSite.com Addict
    Messages: 1,310

    thanks for clearing that up guys i had a hunch but needed the explanation
     
  11. Winter Land Man

    Winter Land Man Senior Member
    Messages: 723

    Yeah, never drive 'em on dry pavement. You should see how it turns when it's on dry asphalt....
     
  12. DBL

    DBL PlowSite.com Addict
    Messages: 1,310

    why does it do it on dry but not on wet or loose ground
     
  13. imdawrlus

    imdawrlus Member
    Messages: 71

    drive your truck in a circle.......which wheels are moving faster?? the front wheels obviously.....so when your in 4wd on pavement all 4 wheels have to go the same speed, and if all the wheels are gripping the pavement then your gonna hear some funny noises......

    it still "does it" in mud and snow, you just dont notice because the wheels slip
     
  14. T-MAN

    T-MAN PlowSite.com Addict
    Messages: 1,363

    You need some "slipage" so you dont get axle binding when turning. You have traction to all 4 tires and they grip dry pavement. Try putting your truck in 4 hi on dry pavement and turn hard. What happens ? You get wheel hop. Now try it in snow, no problem. Because your getting some slipage to eliminate the axle binding.
    Todd
     
  15. Fordistough

    Fordistough Senior Member
    from USA
    Messages: 394

    Anytime you turn with 4X4 engaged, the outer wheels are moving faster, so even if you are on snow or gravel it still does damage to the truck, so do not make it a habit.

    -Thann
     
  16. justme-

    justme- 2000 Club Member
    Messages: 2,138

    When you turn the fron differential lets the outer wheels turn faster than the inner wheels, just like the rear diff- it doesn;t cause ANY damage. The bouncing you feel when turning in 4wheel is from the ujoint in the front axle's being at extreme angles- anything more than 15 degrees. Minimal wear and no more wear then running in 2wd in a CAD axle truck. As long as there is not bare dry roads you have no problem- wet roads are only slightly better since you need some slip at the tire to road contact area to allow the mismatch from the ratios of the front and rear axles to dissapate.

    Most trucks have center axle disconnect 4wd systems- no locking hubs. the gas milage difference is not nearly as great as a locking hub truck, and the front end spins all the time anyway so wear is not a factor- at all.

    If you feel you need 4x4 use it. If you can drive without it then do.