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Rough ride at high speeds


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Posted

I recently went on a camping trip. It was quite a distance on open roads so I was doing 80MPH +. I began to notice that at about 75MPH the whole truck rocks like I'm on a bumpy road - the passenger seat shook side to side and the back seat shook forward and backward making an AWFUL rattling sound. It seemed to do it for 30 seconds, then not for 30 seconds, then do it, then not, . . . But once I got to 80+ things smoothed out considerably. Any ideas?

 

I was thinking tire alignment or balancing (because I've never done it), but I would think it wouldn't be so off and on though.

Posted

You were probably feeling all of those Honda Civics you were driving over. :crackup:

 

I'd start with getting a balance done on the tires and go from there. Good luck.

Posted

Yep, definitely start with the wheel balance. Had a similar experience not long ago.

Posted

If it's shaking that bad at very specific speeds...It could be ujoints...Or it's that wheelbase/road oscillation/frequency thing I bet. My truck will shake the fillings out of my teeth for a 2 mile section of highway between work and home if I hit it between 68 and 73 mph. Anything above or below that and it's smooth-sailing. It's got something to do with the way the road was laid, and the wheelbase on our trucks. I've been in other peoples trucks (same as mine) on the same stretches, and they all do the same thing for the same stretches of highway.

Posted

I'm going to get the tires balanced when I get a chance. It did it over a stretch of about 150 miles, several different roads/freeways. . .that kinda makes me think it's not roadway, but I don't know.

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