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Old 11-19-2011, 09:47 AM
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Quote:
Originally Posted by Vegas69 View Post
You have 1000 hp......
exactly. There's about a 300 rpm difference cruising down the freeway between your 3.70 gear and a 3.25. That's guessing tire height at 27", and using the overdrive gear of .75 in the 4L80E. That trans does not get as much drop in overdrive as the other auto overdrives or any of the 5/6 speed overdrive tranny's.

You have so much power the taller gear will probably help it hook at higher speeds. You will not hook it at lower speeds anyway, so the lower gearing just makes it worse. I wanted the lower rpm's cruising down the road; doesn't sound like much, but the drop really made cruising a lot nicer.
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