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Author
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Topic: CAR SHAKING AFTER 80MPH
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5.0 CGS
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Member # 9567
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posted
 
 
SO IVE BEEN HAVING THIS PROBLEM SINCE I BOUGHT MY 5.0 A YEAR AGO. WHEN I FIRST BOUGHT IT, THE PROBLEM WAS MINIMAL AND NOW ITS BAD. I THOUGHT IT WAS MY TRANNY AND I TOOK ADVANTAGE AND JUST GOT MY TRANNY REBUILT BECAUSE IT NEEDED IT AS WELL AFTER I PUT IT IN IT SHAKES LESS BUT STILL DOES A LITTLE AND JUST YESTERDAY I WAS UNDER THE CAR AND LOOKED AT THE DRIVESHAFT AND BOLTS HAVE BECOME ALMOST COMPLETELY OFF SO THEY SEEM TO COME LOOSE WITH SO MUCH VIBRATION. MY QUESTION IS WHERES THE VIBRATION COMING FROM? IS IT MY YOKES OR MY DRIVE SHAFT. ANY SUGGESTIONS WOULD HELP. I DONT WANT TO DAMAGE MY REBUILT TRANNY.
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TEAM CGS
Posts: 104 | From: stockton | Registered: Nov 2009
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88FOX
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Member # 9969
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posted
drive shaft out of balance maybe.. i spun the weights off mine before shaking gets worse the faster u go.. lift the car spin the driveshaft by hand look for evidence off weights missing..
Posts: 1938 | From: bay area | Registered: Apr 2010
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LXjames
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Member # 10791
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posted
driveshafts are balanced and phased. yor balance maybe off by the weights missing or its out of phase (not straight)
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On Point Motorsport prez.
King Lx
Posts: 4761 | From: Pittsburg CA | Registered: Mar 2011
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triple b
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Member # 8763
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posted
get a aluminum drive shaft dont take my word for it tho..i had same problem research it...the aluminum drive shaft will solve your problems...
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1988 4cyl conv 306 HCI "sasha"
2004 tahoe
Sold- 87 GT, 72 chevelle, 63 biscane, 82 monte carlo, 73 nova, 88 silverado,
Posts: 1730 | From: sacramento ca | Registered: Nov 2008
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88FOX
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Member # 9969
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posted
quote:
Originally posted by LXjames:
driveshafts are balanced and phased. yor balance maybe off by the weights missing or its out of phase (not straight)
i just f*kn said that james... ![[patriot]](graemlins/patriot.gif) haha. if you find it is ur driveshaft out of balance its perfect chance to upgrade it ![[Wink]](wink.gif) or i know it costs around 50 to get it rebalanced thats how much a shop here in hayward was about to charge me
Posts: 1938 | From: bay area | Registered: Apr 2010
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5.0 CGS
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Member # 9567
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posted
DO YOU GUS KNO ABOUT HOW MUCH AN ALUMINUM DRIVE SHAFT COST
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TEAM CGS
Posts: 104 | From: stockton | Registered: Nov 2009
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88FOX
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Member # 9969
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posted
around 200..
Posts: 1938 | From: bay area | Registered: Apr 2010
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LXjames
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Member # 10791
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posted
quote:
Originally posted by 88FOX:
around 200..
+1
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On Point Motorsport prez.
King Lx
Posts: 4761 | From: Pittsburg CA | Registered: Mar 2011
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ddarkslayer
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Member # 10688
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Dont always assume its always the driveshaft. the wheel weights on the wheels could slide and needs rebalancing
Posts: 307 | From: Folsom | Registered: Feb 2011
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88FOX
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Member # 9969
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posted
quote:
Originally posted by ddarkslayer:
Dont always assume its always the driveshaft. the wheel weights on the wheels could slide and needs rebalancing
but the bolts on the driveshaft were loose he said so from what hes stating it leads us to thinking its related to the driveshaft tires being out of balance wouldnt do that
Posts: 1938 | From: bay area | Registered: Apr 2010
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LXjames
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Member # 10791
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posted
wheel weights moving causing shaking after 80? never heard of that. he would have went threw tires if they werent balanced from bouncing down the road or something and there would be issues at all times not just after 80
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On Point Motorsport prez.
King Lx
Posts: 4761 | From: Pittsburg CA | Registered: Mar 2011
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Secnd2nun64
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Member # 1431
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posted
If you think its the driveshaft Change the tailshaft bushing and replace the u joints. Check your tranny mount too.
Wheel balancing and wheel alignment can cause vibrations too. My Porsche will start vibrating on me when the wheels are out of balance. I've even had tires go out of round causing a vibration. If it's at high speed i would start looking at the front suspension for worn out parts and have the wheels checked out and balanced.
[ July 09, 2011, 10:48 AM: Message edited by: Secnd2nun64 ]
Posts: 1460 | From: CA | Registered: Jun 2002
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1990B0SS
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Member # 11069
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posted
mine did the same the when i bought it a couple months ago. all it needed was to be rebalanced
Posts: 44 | From: roseville | Registered: Jul 2011
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86SALLY
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Member # 10736
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posted
It could Be your harmonic balancer
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S.M.C Line Em Up
Posts: 92 | From: Stockton | Registered: Mar 2011
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707clone
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Member # 10342
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quote:
Originally posted by 9STANG6:
mine did the same the when i bought it a couple months ago. all it needed was to be rebalanced
i mite hav to do this soon cuz my fox does it at 80mph but its not too bad!so b4 it gets too bad id like to hav that done!
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Maybe I should get drunk off my HATERADE elsewhere?
I was slow to take the hint, so I'm taking a break from CAFords for the rest of the month. Now excuse me while I enjoy some cereal. Mmmmm Mmmmm good. Who else wants to join me?
Lil Ric!
R.I.P CHARLIE HUSTLE!
91gt p heads,b cam,3:55s,exhaust
89 coupe just startin on him
Posts: 2614 | From: v a dubble | Registered: Sep 2010
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WILDMAN97
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Member # 9138
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posted
mark your drive shaft then swap out your u-jounts. if it still vibrates then rotate your drive shaft 180 degrees.
Posts: 260 | From: Modesto | Registered: Apr 2009
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