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#1 |
yes i did post something
Join Date: Jun 2002
Posts: 244
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good vibrations......not!!!
my 69 chevy sometimes will vibrate at 445 or 50 and sometimes not until 65, how do i fix it, is it u-joints?? driveshaft?? i hav to go on the highway with this truck and i can't when its vibrating, and its not at high rpms when its vibrationg only like 2000
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#2 |
Registered User
Join Date: Aug 2001
Location: Morgan Hill, California
Posts: 309
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It depends on what type of vibaration u have.
Check out tires first, balance, out of round, ect. Then the front end or the drive line. Front end: bad ball joints, idle arm, pitman arm, shocks. Drive line: balance, out of time, u joints. it is possible the trany slipping can cause a vibaration. hope this helps
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72 Cheyenne Stepside 357/TH350 3.07 Posi 379HP@5500 412FT#@4000 96 1500 Work Truck 88 Chevy Van 3/4 97 Tahoe 8.5 Lift (Sons) 00 1500 LT 4x4 (Sons) 98 Ford Cobra (Wifes Car) |
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#3 |
yes i did post something
Join Date: Jun 2002
Posts: 244
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hey im only 16 so i don't understand most of that stuff u just said but im tryin to get into cars more so if u hav time to explain it that would b benificial if not thanx for tryin to help me
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#4 |
Registered User
Join Date: Feb 2001
Location: Ohio
Posts: 1,025
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jordan, you have alot of spinning parts like the driveshaft,tires ect. they all have to be balenced or itll shake ,its like when a fan losses a blade and turns and vibrates
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#5 |
Registered User
Join Date: May 2000
Location: Frankfort, Kentucky, USA
Posts: 2,163
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A good guess would be the midshaft bearing. I've seen several go out, but when you crawl under the truck, they still feel really solid. Just if you seperate the 2 driveshafts make sure that you mark them so they go back together the same, if you don't you'll have a major vibration and ruin your new midshaft bearing. I learned that one the hard way.
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'69 CST Short fleetside Lowered, 400 small block, 700R4, 4 wheel disc brakes, front sway bar & rear camaro sway bar (in progress) '87 V10 4x4 Short Fleetside Quad Suspension and Dual Tanks |
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#6 |
Registered User
Join Date: Aug 2001
Location: escondido, ca 92026
Posts: 1,222
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is this something that happened all of a sudden or has it been slowly getting worse...??? if all of a sudden, have you done anything recently that would cause the problem, like front suspension work, tire rotation, etc....????
when was the front suspension rebuilt last...??? Jack up a front tire, grab it at the 12 and 6 positions.... pull on the top and push at the bottom (and vice versa) to see if there's any looseness... let us know what you find....
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'72 short step, 350, 700R4, tilt, ps, pdb, a/c, lowered coils, etc., other work in progress... San Diego, CA 72 Stepside Project |
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#7 |
Got 20's????
Join Date: Oct 2001
Location: Aberdeen SD
Posts: 1,451
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I just had a vibration problem like that too. I had to shim my tranny up 1/2 inch because of the drop kit setting my angles way off. The vibration ended up ruining my pinion bearing too, so get it fixed right away.
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99 Silverado Ex-Cab 2wd, Bagged&WhippleCharged 02 Sierra Ex-Cab 4wd 2500 HD The 72 went down the road. |
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#8 |
Registered User
Join Date: Feb 2002
Location: point blank
Posts: 113
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vibe help
mine was a u-joint problem chased it for a month then found a bad u-joint
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1968 GMC CST long wide box http://groups.yahoo.com/group/67-72-collectors/ |
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