Vibration From 50 MPH plus
Thread Starter
Instructor
Joined: Jul 2001
Posts: 243
Likes: 0
From: Miami Fl
Vibration From 50 MPH plus
I have A 1995 LT-1 6speed Today I went on the highway and I soon As i hit 50mph the car started To Shake like crazy and 80mph it turn in to Vibtration
I had Balanced and aligned the Car last month and I don't know what to check
Anybody knows what it could be Thanks
:confused: :confused: :confused:
I had Balanced and aligned the Car last month and I don't know what to check
Anybody knows what it could be Thanks
:confused: :confused: :confused:
Le Mans Master
Joined: Jan 2002
Posts: 5,320
Likes: 4
From: Kyle TX (Because Mojo Made me fill it in)
Re: Vibration From 50 MPH plus (YellowC4)
Where do you feel the shake coming from? You could have lost a wheel weight, especially if it was a stick on type, it could have fallen off.
Team Owner
Joined: Sep 2001
Posts: 62,122
Likes: 1,725
From: Athens AL
C7 of the Year - Unmodified Finalist 2021
C4 of Year Finalist (performance mods) 2019
Re: Vibration From 50 MPH plus (YellowC4)
seems to be a common problem, mine shakes a little, but i think its more from the crappy roads in SC
Team Owner
Joined: Sep 2001
Posts: 62,122
Likes: 1,725
From: Athens AL
C7 of the Year - Unmodified Finalist 2021
C4 of Year Finalist (performance mods) 2019
Re: Vibration From 50 MPH plus (YellowC4)
could be anything from warped rotors to a wheel out of balance to wheel bearings to steering rack problems....long list on the last thread like this
run a search, its been on here before ALOT.
run a search, its been on here before ALOT.
Drifting
Joined: May 1999
Posts: 1,697
Likes: 1
From: Joliet IL
Re: Vibration From 50 MPH plus (YellowC4)
Mine used to shake like crazy too. I had new rims and new tires but that didn't help. I had the driveshaft balanced and u-joints replaced and that fixed most of the vibration. I was also getting a knocking sound from my steering wheel, and the dealer replaced the steering rack and the inner tie-rods and now the vibration is gone. Good luck.
Racer
Joined: Jul 2001
Posts: 253
Likes: 0
Re: Vibration From 50 MPH plus (YellowC4)
Hope one of my old posts helps you out....
http://forums.corvetteforum.com/zerothread?id=275234
http://forums.corvetteforum.com/zerothread?id=275234
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Instructor
Joined: Mar 2001
Posts: 199
Likes: 0
From: Canyon Lake California
Re: Vibration From 50 MPH plus (YellowC4)
I feel your pain! My '88 has the exact same ailment. Everything I've done helped a little, but the vibration lives on. Now it is most pronounced at 80 MPH.
1) Replaced all 4 wheel bearing hubs ($700 for parts)
2) Four new tires installed and balanced ($700 for 275 ZR40-17 Futuras)
3) Drive shaft fully serviced: balanced, straightened, new Spicer U-joints ($160).
The vibration continues. :mad
I guess I'll replace all four rotors since they're original. I'll just keep throwing money at it until it stops doing it. :cry
Greg Sullivan
1) Replaced all 4 wheel bearing hubs ($700 for parts)
2) Four new tires installed and balanced ($700 for 275 ZR40-17 Futuras)
3) Drive shaft fully serviced: balanced, straightened, new Spicer U-joints ($160).
The vibration continues. :mad
I guess I'll replace all four rotors since they're original. I'll just keep throwing money at it until it stops doing it. :cry
Greg Sullivan
Thread Starter
Instructor
Joined: Jul 2001
Posts: 243
Likes: 0
From: Miami Fl
Re: Vibration From 50 MPH plus (Greg's '88)
I will Probably Change the U joints but how do I balance the Drive Shaft :confused: And Anything I hould be Aware Of when Changing The U joint it my First Time never done it Before
Thanks :flag
Thanks :flag
Instructor
Joined: Mar 2001
Posts: 199
Likes: 0
From: Canyon Lake California
Re: Vibration From 50 MPH plus (YellowC4)
I didn't change the u-joints myself. I took the old drive shaft to a place that specializes in drive shafts and asked them to replace the u-joints, straighten the shaft (if necessary) and balance. They supposedly spin it on a machine at 3,300 RPM to verify balance. They kept my drive shaft for 24 hours and charged around $160. When I got it back, it looked brand new. Somehow they polished it to a high shine. :cheers:
If you are going to tackle the u-joints on your own you will need a press or a very strong vise to get the old u-joints out and the new ones in. A long time ago I bought some u-joints at Pep Boys (for a different car) and the mechanic did the swap. I already had the drive shaft out of the car.
Greg Sullivan
If you are going to tackle the u-joints on your own you will need a press or a very strong vise to get the old u-joints out and the new ones in. A long time ago I bought some u-joints at Pep Boys (for a different car) and the mechanic did the swap. I already had the drive shaft out of the car.
Greg Sullivan
