anyone running 3.90 gears

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01-15-2008 | 11:42 PM

fastrt

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From: Midlothian, Texas

anyone running 3.90 gears

just wondering. how do you like them? track times? crusing rpm's? thanks

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01-16-2008 | 12:24 AM

02_Orange_D1SC

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From: mASSHOLE

the breeze is running 3.90 gears

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01-16-2008 | 01:16 AM

graysilv

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From: Texas

i have 3.90's on my truck i do about 2300rpm at about 70mph...

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01-16-2008 | 10:35 AM

CDN SS

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From: Winnipeg Canada

Quote:

Originally Posted by graysilv

i have 3.90's on my truck i do about 2300rpm at about 70mph...

How tall are your tires ?? sounds like about 28-29" I',m thinking 4.10's but with 31.6" tires so expected 70 to be about 2200

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01-16-2008 | 03:48 PM

chev5.3

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Quote:

Originally Posted by graysilv

i have 3.90's on my truck i do about 2300rpm at about 70mph...

x2 im running 3.90's and with 295 40 20's i run 2300-2400 rpms at 70

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01-16-2008 | 05:59 PM

CDN SS

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From: Winnipeg Canada

Quote:

Originally Posted by chev5.3

x2 im running 3.90's and with 295 40 20's i run 2300-2400 rpms at 70

Ok makes sense that is a 29" tire any idea how much mileage you off from stock 3.42"s

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01-16-2008 | 06:11 PM

NegraRCSB2X4auto

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From: Texas

i'm running 3.90's also with 275 45 20 70 at around 2300

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anyone running 3.90 gears

anyone running 3.90 gears

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