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-   -   new gears and MPG (https://67-72chevytrucks.com/vboard/showthread.php?t=66583)

gldevall 08-28-2003 11:07 PM

new gears and MPG
 
Well, just checked my mileage with the 3.73's and 400 trans. Even gettin' on it a good bit, still got 11.61 MPG

Poonman86 08-29-2003 03:31 AM

wish mine was that good right now:D

low 84 08-29-2003 11:16 AM

what gears did you have in it originaly? how big of a seat of your pants difference is it?

gldevall 08-29-2003 11:31 AM

I had 2.73 with open diff and changed to an Eaton posi unti with 3.73. The 1st couple of days I was kinda scared of it because there was that much difference in it. Now when I get on it and shift into 2nd it barks those 255/60's like a standard would. I can't wait to get back to the track and run it again...next weekend.

low 84 08-29-2003 11:45 AM

cool. i'm pretty sure i've got 2.73's now also. i can't decide wheter i want to go to 3.55's or 3.73's or if it would even matter that much betwen the two. i have to pay off the credit cards before i can even think about doing that though.

cochino12 08-29-2003 11:47 AM

which tranny do you have again? shift kit?

gldevall 08-29-2003 12:04 PM

I have a 400 with a B&M shiftt the stage 2 (street/strip)


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