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I'm drag racing tonight Thunder valley.
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<blockquote data-quote="swampratt" data-source="post: 3227480" data-attributes="member: 15054"><p>Yes it is.</p><p>The issue is a bad harmonic I think is in the driveshaft or driveshaft angle.</p><p>It will shake your butt really well at 6000 RPM in high gear. which is before 100 MPH with 10% converter slippage and it feels like I have much more slip than that with this heavy boat.</p><p>That basically is like a head shake on a motorcycle at high speed.. you try to go faster but the harmonic will not allow it.</p><p>Then the converter just slips more and more. Pouring the coals to it but the anchor has been tossed out.</p><p>I think a 4.11 gear will be better but I do not have those for a 9" ..I do have 3.70 gears and that may help.</p><p></p><p>New drive shaft is in it.. kind of new, had it built when I put the car on the road a couple years ago and it is 3.5" diameter with spicer joints.</p></blockquote><p></p>
[QUOTE="swampratt, post: 3227480, member: 15054"] Yes it is. The issue is a bad harmonic I think is in the driveshaft or driveshaft angle. It will shake your butt really well at 6000 RPM in high gear. which is before 100 MPH with 10% converter slippage and it feels like I have much more slip than that with this heavy boat. That basically is like a head shake on a motorcycle at high speed.. you try to go faster but the harmonic will not allow it. Then the converter just slips more and more. Pouring the coals to it but the anchor has been tossed out. I think a 4.11 gear will be better but I do not have those for a 9" ..I do have 3.70 gears and that may help. New drive shaft is in it.. kind of new, had it built when I put the car on the road a couple years ago and it is 3.5" diameter with spicer joints. [/QUOTE]
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