High Speed Vibration
#1
High Speed Vibration
My '86 Z28 will vibrate at high speeds (65+) The whole car vibrates, the dash, the seats, the steering wheel, everything.
It has aftermarket 3.73 rear end and runs about 3000 RPM at 75 MPH.
I think it might be the drive shaft, any other ideas?
Thanks, I should get it back it about a week from being painted.
It has aftermarket 3.73 rear end and runs about 3000 RPM at 75 MPH.
I think it might be the drive shaft, any other ideas?
Thanks, I should get it back it about a week from being painted.
#5
I think the first thing I would check is the U-jionts , just to be on the safe side you don't want that thing dropping out at speed. Then check the shaft,and or wheels. Where does the vibration seem to come from ,under the car,front ,back ? It could be the convertor if it seems like the front,could be a bearing in the rear if it seems like the back,but my guess would be shaft related.
#6
Driveshaft. Time to replace or upgrade. it's always nice to have a reason for an upgrade.
My car with 3.73's when I bought it vibrated BAD above 75mph. Stock shaft was just really out of balance and that can get very dangerous over 100mph.
My car with 3.73's when I bought it vibrated BAD above 75mph. Stock shaft was just really out of balance and that can get very dangerous over 100mph.
#8
I had that same problem. i mean it would shake BAD. my dash pad looked like it was going to come off It was my tires. They had worn down funny and it was causing a vibration. im guessing if your allignment is ok and your tries are wearing properly it would be the driveshaft.
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