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#1 |
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Anyone had issues wiih vibration above 5000 rpm in 3rd, seemingly shaft is too short ?
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Gary Burr IHRA MEMBER # 1958 Stk 1949 |
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#2 |
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Yes there are several GM bulletins on it. And the problem only gets worse if you put a numerically higher than factory rear gear ratio in it. I'm assuming here that you are talking about a GM drive shaft. In my street cars I put 1LE driveshafts in them. I have them rebalanced as well. They don't have the heavy trans Yoke with the balancer on them which makes them easy to spot in a salvage yard if you are looking. Can find them on Ebay too but usually priced like Gold there. . On both my racecars I put aftermarket shafts in them.
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#3 |
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The 1LE driveshaft is aluminum, which dampens out those vibrations. It was a service fix for awhile. Watch out though, if you drop the clutch with high traction tires, it may twist up like a pretzel !
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#4 |
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4L60E here
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Gary Burr IHRA MEMBER # 1958 Stk 1949 |
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#5 |
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I think the 4L60, and the manual trans, uses the same driveshaft.
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#6 |
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that is what all references say
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Gary Burr IHRA MEMBER # 1958 Stk 1949 |
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