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Old 12-07-2017, 11:50 AM
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RodKnock RodKnock is offline
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Join Date: Feb 2007
Cobra Make, Engine: KMP 539, a Ton of Aluminum
Posts: 9,588
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I think I have the earlier 3.42 rear diff from Kirkham and the 0.82 5th gear and it's pretty close to being perfect. I'd actually wouldn't mind going to a numerically higher ratio, like Mike, who has 3.54, but it's not worth the pesos.

I just installed Avons and I think they're wee bit smaller than the Yoko's, so maybe that'll help get the rpms more.
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