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#1 |
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Join Date: May 2006
Location: Murfreesboro TN
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RJ, there are some guys running the 8.5 late model 10 bolt in real fast cars. I'm not completely convinced that the reduced weight and drag is enough to offset the increased risk of breakage and the increased maintenance costs. It's the same basic design as the 12 bolt, it is just slightly smaller and lighter. I'd say you could get by with doing it. I'm not sure it'll make enough difference in ET and MPH to cover the at least 50% reduction in ring and pinion life, especially when you go to 5 series gears, as the pinion gear gets really small, and that's where the weak point is.
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Alan Roehrich 212A G/S |
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#2 |
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Join Date: Jun 2007
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With a weight of 3900lbs and a predicted ET range of 10.80's, I have to assume this is a bigger cube engine. It takes a lot of power to run 10.80's at that weight. I would not race that with anything smaller than a 12 bolt if it was a GM vehicle. Breaking rear ends is not fun.....
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Rich Biebel S/C 1479 Stock 147R |
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#3 |
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Join Date: Oct 2002
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Yes, in asking around I'm getting the same answer, 12 bolt it is, thanks all.
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#4 |
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Join Date: Nov 2008
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Just for curiosity's sake,what are you thinking of building that weighs 3900 pounds and goes 10.80's? A 427 Caprice or something? Yes, a 12 bolt is the right choice.
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