Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Bad rear axle shocks very common?

  1. Jan 4, 2009 #1

    DaveC426913

    User Avatar
    Gold Member

    Some point a while ago while driving I noticed a car whose rear wheels were noticeably bowed outward, thus:
    [​IMG]


    Now, wherever I go I notice cars like this. Always the rear wheels, never the front. It seems to be very common.

    Is this due to bad shocks? Is there an epidemic?
     
  2. jcsd
  3. Jan 4, 2009 #2
    I never noticed that. Could it be because the car's rear is overloaded?
    P.S. I am a total car noob
     
    Last edited: Jan 4, 2009
  4. Jan 4, 2009 #3

    Ivan Seeking

    User Avatar
    Staff Emeritus
    Science Advisor
    Gold Member

    http://peugeot.mainspot.net/tips/four_wheel.shtml

    http://www.familycar.com/alignment.htm
     
  5. Jan 5, 2009 #4
    Have you had a rapid influx of out of state residence; or a VW beetle invasion? But the first would be bad shocks not springs...
     
  6. Jan 5, 2009 #5

    Pythagorean

    User Avatar
    Gold Member

    the particular angle you're talking about is camber, particularly negative camber. Negative camber improves friction bonds on turns, but most standard automobile tires are designed so that they'll wear evenly with 0 camber.

    Most people never get their vehicles aligned though so it wouldn't be surprising to see it a lot on older vehicles. Do you think most of the examples you saw were older?
     
  7. Jan 5, 2009 #6
    I'll have to check out rear end axles. Worn springs will decrease in length. With a solid rear axle the wheels will stay parallel--which is what I have. But without two universal joints on each side, worn springs should allow sagging. But I'm talking about rear wheel drive. Guess I'll have to look at independent suspension too.
     
  8. Jan 5, 2009 #7

    DaveC426913

    User Avatar
    Gold Member

    Whatever hypothesis is put forth will have to agree with the fact that:
    - it is always the rear wheels, I've never seen front wheels do this
    - it happens across many cars, not rarely (so overloading is unlikely)
    - it does seem to occur on newer cars as much as older cars
     
  9. Jan 5, 2009 #8
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Have something to add?



Similar Discussions: Bad rear axle shocks very common?
  1. Probably shocking (Replies: 5)

  2. Is it bad (Replies: 13)

  3. Is it bad? (Replies: 3)

Loading...