I have been throwing around the idea up upgrading my rearend, and I have read a lot of about ugrading the rearend.

But since my car is my daily driver, and I do all my driving in suburban areas, gas milage is very important to me.

So the question is, what kind of MPG are you guys gettig with those rear-ends. My uncle has a 69 SS 396 with a 4.10 and he gets 6 mpg, which is what I am afriad of.

Any help would be extremely apreciated!

-Todd

 

I only drive a little highway and mostly city. My mileage with my 2.73 was 15.3 mpg and my mileage after going to a 3.73 gear was 15.3 mpg

 

depends on how heavy my right foot is that tank

on the highway I typically average almost 20

when out screwing around I've had it as low as 10... but that was a long hardcore night

but "typical" driving I'm right about where I was with the 3.42's.. I just run a gear higher (5th instead of 4th) and average out to about 15-18mpg...

 

I get about the same as i did before, better city mileage due to being able to use 5th and 6th, but a little worse highway mileage, this is with 4.10's btw. But, as someone else already stated, the lead foot has also take me down to 10-11 mpg before too
Brandon

 

Before I switched to the non lock-up converter, I was getting 18+ MPG...With all the other stuff in my sig.

Frank

 

Im currently getting aroudn 32mpg with stock 3:42's. With 4:10's im expecting around 25-27mpg. Of course how hard you drive it is a major factor

 

with 4.10 and 235,000 miles i get 22-24 mpg.

 

27 mpg

 

you guys gotta be ****ting me, 27 and 32 mpg?

 

Dont fret bstevens, you'd get numbers like that if you had a M6 or if you cut off your lead foot. I have both problems.

Dustin

 

i have gotten over 300 miles out of 10 gallons, not screwing off and not going over 70mph on the highway... although on the weekends is when i let the juice flow since i got a fresh paycheck in my pocket. listen.. if you are worried abuot gas mileage buy a dodge colt or something. peace

 

btw.. if you are street racing with highway gears and the rustang you are racing has 4.10s.. who do you think is gonna get away when the blue lights arrive? theres some food for thought

 

the rustang will get caught before me. because 160 is not a problem with 4.10s in a m6. acctually i turn only 4000 rpms a 140mph. and its still pulling pretty good.

 

28mpg with a mix of 80% interstate and 20% city