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Old 01-01-2009, 02:33 PM   #9 (permalink)
festivaWES
Cause I'm an 80's Baby!!
 
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Join Date: Dec 2008
Location: Strafford, MO
Posts: 37

Festiva hauler - '02 Chevorlet S-10
90 day: 27.98 mpg (US)
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Your lyrics are tyte yo!

Switching to a bigger tire wheel is going to add rotatioal weight thus decreasing FE and lowering mpg.

There should be an RPO code in the glove box that tells you the gearing.

I know s-10 are these numbers:

GU4=3.08
GU5=3.23
GU6=3.42
GT4=3.73
GT5=4.10
HC4=4.56

G80 - locking differential
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