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05-31-2010, 04:34 PM
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#1 |
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Registered User
Join Date: Nov 2009
Location: Provo, Utah
Posts: 67
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Shakes at 55 to 70 MPH
Ok been having a problem lately and its trying to figure out what is causing my truck to shake at 55 to 70 MPH. I was thinking it would partly the rotors changed those out and now i think it could be the balance of my tires or maybe my drive line is out of round.Any other ideas?? please really need this fixed
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05-31-2010, 05:04 PM
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#2 |
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Registered User
Join Date: Jan 2010
Location: Roanoke, Tx.
Posts: 1,561
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Re: Shakes at 55 to 70 MPH
My truck shook at 55 to 70 mph. The rear tire was on the axle crooked. The part of the axle where the wheel slides over was hit with a hammer. I had to file it down so the wheel went on straight. Spin all of your wheels and see if they turn straight or not. They may just need balanced. Good luck.
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05-31-2010, 05:06 PM
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#3 | |
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just can't cover up my redneck
Join Date: May 2004
Location: Columbus OH
Posts: 11,414
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Re: Shakes at 55 to 70 MPH
Shaking is usually associated with tires. Even if they are "balanced", they may not be "round". A good tire store should be able to determine this and correct it if needed. "Truing" is essentially a big lathe that can cut the diameter to the point of being round. You do lose a bit of tread in the high spots, but the tires will run much smoother and last longer over-all. They can also tell if you have a bent wheel at the same time, as this could cause it too.
Of course this also assumes that you have the basic chassis in good working order too. The ball-joints, tie-rods, control arm bushings, wheel bearings, etc should be in good shape. These things are generally issues of front end wobbles or wandering though, not all-over shaking.
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05-31-2010, 06:57 PM
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#4 |
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Registered User
Join Date: Dec 2006
Location: SLC, UT
Posts: 706
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Re: Shakes at 55 to 70 MPH
2 wheel drive? 4 wheel drive?
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05-31-2010, 07:45 PM
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#5 |
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Account Suspended
Join Date: Jul 2006
Location: DFW
Posts: 1,427
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Re: Shakes at 55 to 70 MPH
Rotors usually show up as a feeiling in the steering wheel when braking. I'd rotate and balance the tires first and maybe have them check for roundness/trueness as longhair said.
I'm no expert though... |
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05-31-2010, 10:14 PM
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#6 |
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Registered User
Join Date: Nov 2008
Location: WNY
Posts: 313
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Re: Shakes at 55 to 70 MPH
Parking brake. U joints. Unbalanced shaft.
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05-31-2010, 11:53 PM
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#7 |
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I really hate wet sanding!
 
Join Date: Dec 2008
Location: Brookfield, MO
Posts: 601
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Re: Shakes at 55 to 70 MPH
I vote for the u joint as a likely cause of the shakes!
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Jeff, 68 C-10 75 C-20, now a C-10! 10 F-150 |
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06-01-2010, 12:01 AM
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#8 |
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Registered User
Join Date: Mar 2009
Location: TN
Posts: 410
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Re: Shakes at 55 to 70 MPH
It happened lately? If you aren't hard on your trucks drivetrain, it probably isn't a U-Joint. You might have thrown a weight off one of the wheels.
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'69 Dodge Charger R/T 440, 727, 3.55 Sure Grip '68 Plymouth Road Runner 383, 727, 3.23 Sure Grip '89 Dodge Diplomat ex cop car 408, 727, 3.55 Sure Grip '77 Dodge Monaco ex cop car 440, 727, 2.71 '79 Dodge 'Lil Red Express pickup 360, 727, 3.55 Sure Grip '12 Dodge Challenger SRT8 392, M6, 3.92 '85 Chevrolet C-10 SWB 2wd 305, TH350, 2.73 |
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06-01-2010, 10:16 AM
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#9 | |
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Registered User
Join Date: Nov 2009
Location: Provo, Utah
Posts: 67
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Re: Shakes at 55 to 70 MPH
Quote:
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06-01-2010, 10:58 AM
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#10 | |
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Registered User
Join Date: Mar 2009
Location: TN
Posts: 410
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Re: Shakes at 55 to 70 MPH
Quote:
I mentioned the way you do/don't drive your truck so you could most likely rule out other things like a U Joint and look at balancing your tires like everyone else here said.
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'69 Dodge Charger R/T 440, 727, 3.55 Sure Grip '68 Plymouth Road Runner 383, 727, 3.23 Sure Grip '89 Dodge Diplomat ex cop car 408, 727, 3.55 Sure Grip '77 Dodge Monaco ex cop car 440, 727, 2.71 '79 Dodge 'Lil Red Express pickup 360, 727, 3.55 Sure Grip '12 Dodge Challenger SRT8 392, M6, 3.92 '85 Chevrolet C-10 SWB 2wd 305, TH350, 2.73 Last edited by 85Bowtie; 06-01-2010 at 10:59 AM. |
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06-01-2010, 10:30 PM
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#11 |
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Registered User
Join Date: Nov 2009
Location: Provo, Utah
Posts: 67
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Re: Shakes at 55 to 70 MPH
Ya i'm thinking that it is that and i need to get them balanced asap so i dont have to worry about it anymore.
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06-02-2010, 12:08 AM
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#12 | |
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I really hate wet sanding!
Join Date: Dec 2008
Location: Brookfield, MO
Posts: 601
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Re: Shakes at 55 to 70 MPH
Quote:
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Jeff, 68 C-10 75 C-20, now a C-10! 10 F-150 |
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06-02-2010, 03:18 AM
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#13 |
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70knight
Join Date: May 2007
Location: New Jersey'bridgewater'93poplar'street.
Posts: 34
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Re: Shakes at 55 to 70 MPH
My tires for 5 year old I change from back to front every 7000 miles to keep tire round. check air pressure once a mouth. I grease all front end bearing and check for losen in bears. 70 knight
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70 4X4 KNIGHT
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06-02-2010, 07:40 AM
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#14 |
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Registered User
Join Date: May 2009
Location: Motor City
Posts: 9,226
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Re: Shakes at 55 to 70 MPH
How 'bout some more technical clues?
* Does it do it all the time, or come and go? * Does it do it coasting with the engine off (or conversely, stopped and revving the engine in neutral)? * Can you jack the rear end up and recreate the vibration on jackstands? * Have you changed anything recently? K
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Chevrolet Flint Assembly 1979-1986 GM Full Size Truck Engineering 1986 - 2019 Intro from an Old Assembly Guy: http://67-72chevytrucks.com/vboard/s...d.php?t=342926 My Pontiac story: http://forums.maxperformanceinc.com/...d.php?t=560524 Chevelle intro: http://www.superchevy.com/features/s...hevy-chevelle/ |
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06-02-2010, 09:55 AM
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#15 |
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Registered User
Join Date: Sep 2005
Location: Sun City West, Az
Posts: 3,822
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Re: Shakes at 55 to 70 MPH
most of the shakes iv'e experienced have been tire balancing.........45 and 65 seem to be two speeds where it really shows.
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" Never look up a dead dogs butt."
Last edited by boatpuller; 06-02-2010 at 09:55 AM. |
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