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Old 06-23-2005, 06:15 PM   #1
lag
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Default Driveline vibration between 68-72mph

It's petty bad I'd say and very much annoying. I had the car on a lift today changing oil and misc. and checked the wheels and got to the half-shafts and the two fronts I can wiggle about 2-3mm grabing the shaft in the middle. I worked my way down to the stub sticking out of the tranny and I can wiggle it there as well. Is this normal (I suspect not) but is this tranny rebuild time or is my vibration coming from some where else?
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Old 06-24-2005, 10:29 AM   #2
b4wantab
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Have you tried balancing the tires and wheels?

I am not sure how much play the CV are supposed to have so I can't help there. I have had a few harmonic type vibrations at certain speeds and have always solved it with balancing.

Peace,

Greg
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Old 06-24-2005, 11:58 AM   #3
MitchGT
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Quote:
Originally Posted by b4wantab
Have you tried balancing the tires and wheels?

I am not sure how much play the CV are supposed to have so I can't help there. I have had a few harmonic type vibrations at certain speeds and have always solved it with balancing.

Peace,

Greg
+1...
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Old 06-24-2005, 12:00 PM   #4
lag
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yepper, no luck.
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Old 06-24-2005, 12:08 PM   #5
Dobes
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There usually is a fair amount of slop in the half shafts. On my RS I can rotate the half shafts a bit back and forth before the trans starts rotating. I think your wheels and/or tires are unbalanced.

JD
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Old 06-24-2005, 12:24 PM   #6
bhall
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+3 on the balencing. I got a new set of tires and then I had a wicked shimmy at 60-65 mph. I brought it back the next day and they guys said "ya I guess out balencer was out of wack yesterday, we have had 5 other people back today for the same deal"
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Old 06-24-2005, 02:40 PM   #7
Huffer
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generally if you can drive into/out of a vibration in the steering, it's going to be balancing.

It could also be the tread itself - I had a problem a few years back similar to this, I swapped the wheels front to rear, problem gone.

If you can feel vibration thru the transmission tunnel, it could be a worn tranny mount.
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Old 06-24-2005, 02:48 PM   #8
Plays_With_toys
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I'd say balancing too. I've got blown shocks up front, and I am thinking it makes the problem more pronounced. So if you have older/worn out shocks, even the smallest balance problem could seem bigger.

On my car, between 60mph and 75mph I had a bad vibration (like tire going flat feeling).Tires were swapped around and the problem is gone since the slightly out of balance tire is under a good shock.

Another good thing to check is if you've had the wheel off recently, make sure all the bolts are torqued down correctly.
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Old 06-24-2005, 03:00 PM   #9
bhall
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also if you got dem maD TytE spinna hub caps yo one could be spinnin out of wack yo.

once again i got nothing...
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Old 06-24-2005, 03:29 PM   #10
lag
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lol,

well, I guess I'm going to rotate and balance again. I'm going to take it in for an alinement as well. Hopfully one of these things will cure it.
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Old 06-25-2005, 12:00 PM   #11
Charlie-III
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One other thing to check (I have had this as well) is a dragging front caliper.

Get on a highway and run the speed up for 5-10 minutes. Carefully pull to the shoulder with minimum braking. Get out and check the center of each wheel. You may find one that is warmer then the others (by a noticeable amount). If so, get home and pull it apart. I had a piston sticking and it was dragging the brake.
My gas mileage was also low when it happened.
A rebuilt calpier was ~$60 from a local parts place.
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