Whats wrong with my truck?

Discussion in 'Trucks and Trailers' started by weed wacker 2, Dec 22, 2009.

  1. weed wacker 2

    weed wacker 2 LawnSite Member
    Messages: 207

    I have a bad shake in my truck over 50mph. It shimmies at low speeds but you can really feel it at higher speeds. The tires are brand new and my front end just got aligned not too long ago. Is there a possibility of it being a u joint?
  2. 93Chevy

    93Chevy LawnSite Fanatic
    Messages: 41,970

    Anything in the front end is possible. Check your tie rod ends, u-joints, etc. What kind of truck is it? Is it 4wd? If it is, then there's driveshaft and t-case issues to be looked into as well. I'd begin by checking the parts that connect the wheels to the steering sytem: tie rod ends, steering box, etc. Good luck.
  3. JawZZ

    JawZZ LawnSite Member
    Messages: 49

    Make, year and model?

    Start with the easy stuff.
    Make sure your lug nuts are tight.
    Could be a bad or unbalanced tire.
    Check all steering and suspension components.
    Last time I had a u-joint going out it would "clunk" when first taking off.
    Last edited: Dec 22, 2009
  4. Lawn Man Dave

    Lawn Man Dave LawnSite Senior Member
    Messages: 420

    double check the torque on the lug nuts (make sure they are still tight). Then hack the truck up and grab the tire on each side (one had to the left of the wheel and one to the right) and see if the wheel has any play..... with the steering locked it should not move at all.... if it does have movement look under the truck at the suspension for that wheel and you should be able to see what is moving.

    I know ball joints and tie rods tend to shake above like 60mph... the ones I have driven with them bad seem to be ok at low speeds though...

    Also make sure the tire is mounted right..... some have an arrow showing direction or rotation... make sure it is not backwards. Also sounds like the wheels may not have been balanced right with the new tires...
  5. blake101

    blake101 LawnSite Senior Member
    Messages: 581

    It could also be a slipped belt in your tire. Jack it up and spin your tire and see if you have any lumps on the tread surface.

    Let us know what you find out.
  6. KS_Grasscutter

    KS_Grasscutter LawnSite Gold Member
    Messages: 3,336

    Bent rim? Mud or snow packed into a rim?
  7. topsites

    topsites LawnSite Fanatic
    Messages: 21,653

    Wheel bearings, too.
  8. weed wacker 2

    weed wacker 2 LawnSite Member
    Messages: 207

    The vibration existed when I had the old tires on it. It is a 06 f250 with the 6.0. The vibration goes through the whole truck. You cant feel it in the steering really. It makes the seats and everything else shake. It seems to get worse when I am pulling something.
  9. unkownfl

    unkownfl LawnSite Gold Member
    Messages: 3,837

    Its just how they are. Didn't you get the letter from ford about it like 6 months ago. I know I did but I bought my 06 f350 new.
  10. jbturf

    jbturf LawnSite Bronze Member
    Messages: 1,503

    i vote check the driveshaft

    most of those trucks have carrier bearing assy (2 pc rr shaft)
    , with a rubber boot that can wear out over time and can lead to
    some drive train vibes-- or it could need to be shimmed
    to proper angle

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