3.90 Ring & Pinion for 05+ GT?

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Jan 12, 2007 | 11:33 AM

#21

gkaufman

Bullitt Member

Joined: July 20, 2005

Posts: 253

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I drive over 60 miles a day on I81 so 3.90's are a good compromise. Not to mention I've been on many 3000 mile road trips

Jan 12, 2007 | 11:35 AM

#22

freebass55

Cobra Member

Joined: July 29, 2004

Posts: 1,448

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From: SoCal

I drive over 60 miles a day, also. And after trying both, I would go with the 4.10's.

Jan 13, 2007 | 04:09 PM

#23

cobra1993ky

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Joined: November 14, 2006

Posts: 18

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Just drove back from having my 4.30's put in. Here are the rpm results on the highway. 2600 at 70 mph , 2750 at 75 mph , 2950 at 80 mph

Jan 13, 2007 | 06:29 PM

#24

SlamMan02

Cobra Member

Joined: September 10, 2004

Posts: 1,456

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From: Austin TX

Quote:

Originally Posted by blkstang06

If your not doing much highway driving do the 4.10's

The difference between 3.90s/4.10s at 70mph is only 100rpm difference anyways

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