1989 Other Chevrolet Models Differential or Clutch

1989 CHEVROLET
12,000 MILES • 6 CYL • 2WD • MANUAL
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RUSSELLMYERS0926
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1989 Chevy 1/2 ton 2wd. Vibration/shimmy that is noticable at 30mph. Comes and goes, but noticable again at 60mph+. First thought was tires, really feels like a tire issue but I have brand new tires which I road force tested and re balanced and are perfect. I have replaced worn u-joints. Inspected all suspension components. Everything checks out. This vibration IS NOT felt on a rack, only driving. Is it possible a broken clutch spring(s) may cause a bad vibration only while driving? Is it possible that exessive gear lash or pinion play in the rear end can cause a bad vibration only under driving? (I do have a pinion bearing set that does need installed, its noisy but no vibration)THANKS
Mar 14, 2009 at 5:29 PM
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BOGONE
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Does the steering wheel shake or is at hi speed vibration you can feel in the seat. Does ot go away at different speeds?
[quote:d716cebfa5="russellmyers0926"]Shakes or Wobbles problem
1989 Other Chevrolet Models 6 cyl Two Wheel Drive Manual 120,00 miles

1989 Chevy 1/2 ton 2wd. Vibration/shimmy that is noticable at 30mph. Comes and goes, but noticable again at 60mph+. First thought was tires, really feels like a tire issue but I have brand new tires which I road force tested and re balanced and are perfect. I have replaced worn u-joints. Inspected all suspension components. Everything checks out. This vibration IS NOT felt on a rack, only driving. Is it possible a broken clutch spring(s) may cause a bad vibration only while driving? Is it possible that exessive gear lash or pinion play in the rear end can cause a bad vibration only under driving? (I do have a pinion bearing set that does need installed, its noisy but no vibration)THANKS[/quote:d716cebfa5]
Mar 19, 2009 at 1:45 PM