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truck bounces at 45mph


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#1 Merz

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Posted 13 November 2009 - 01:01 PM

My truck bounces when im driving around 40-50mph. I just replaced the front shocks and ball joints. I cant tell if its the front or rear that is bouncing. Its annoying though. Its a fast bounce, like 2 times a second. Maybe i should replace my rear shocks? Could a wheel be out of balance? I have no idea.
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#2 drew

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Posted 13 November 2009 - 01:06 PM

45 mph is the -exact- speed that my unbalanced tires start vibrating really badly
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#3 Merz

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Posted 13 November 2009 - 01:22 PM

QUOTE (drew @ Nov 13 2009, 01:06 PM) <{POST_SNAPBACK}>
45 mph is the -exact- speed that my unbalanced tires start vibrating really badly


I had mine rotated a few months ago. I thought they always balanced them when they rotated? maybe not. I will get them checked again.
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#4 Highrider24/7

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Posted 13 November 2009 - 02:21 PM

check your psi, if one tire is off it could make it bounce
So first check all tires PSI
Next, get the tires balanced if you have not done so this could also cause bounce at those speeds

check for a bent wheel sometimes you wont feel if a wheel is bent also until those speeds

I had one tire at like 40 psi and the others were 32 it totally affected the ride especially 50-55 i get the steering wheel shake

Other than that what kinda tires you runnin?
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#5 Troublemaker

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Posted 13 November 2009 - 03:30 PM

U joint
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#6 Jordan

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Posted 13 November 2009 - 03:33 PM

did you lose a wheel weight?


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#7 Merz

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Posted 13 November 2009 - 04:33 PM

They are 32x11.5x17 super swampers. I will go check the psi on them. Should there always be a wheel weight?
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#8 beedle4

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Posted 13 November 2009 - 04:35 PM

Dont those tires have a track record for being out of round?
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#9 Jordan

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Posted 13 November 2009 - 09:22 PM

What kind super swammpers? they make different ones which blance differently.
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#10 Merz

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Posted 15 November 2009 - 09:19 PM

super swamper tsl i think.

30 psi on all 4.

Edited by Merz, 16 November 2009 - 12:10 PM.

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