new gears

[bigbody]

Me an a friend both have new 04 scsb 5.3s, an we are about to change are stock gear 3:42 to a 3:73. An I noticed a few of you guys have changed your gears to. So anyways here are the questions I was just wondering.

1. How much will the 3:73 lower my 1/4 mile time by?
2. How much will it change my gas millage?

[01Thunder]

I would say by 1/10 maybe 2/10's
gas mileage isnt going to change that much. not really noticeable.
I went from 3.42's to 3.73's, drove around for about a week before I put in the stall.

now if I could keep my foot out of the gas, I would get better gas mileage.

[vv8]

well when the truck was stock i went from 3.42 to 4.10 and gained a 1/2 second in the 1/4 and my gas dont know but i still get anywhere from 18 to 21 on the hwy.